Fourteen-year-old Sami (Samy Seghir) is a beur (a French person of North African descent) living in Chalon-sur-Saône, a relatively poor city in the Burgundy region. When his widowed mother (Farida Khelfa) takes a job working on a boat, she sends Sami to live with her sister Djamila (Rachida Brakni), who is married to Frenchman Stanislas de Chazelle (Denis Podalydès). They live in the upscale neighborhood of Neuilly-sur-Seine, an affluent suburb of Paris, with Stanislas' two children from his prior marriage: Charles (Jérémy Denisty), who aspires to be a politician someday, and Caroline (Chloé Coulloud). At first Charles resents Sami's presence in his house, but they gradually become friends. Sami enrolls in classes at Saint-Exupéry, a private school there.
When bad boy police officer Ousmane is involved in a car accident, he is mistaken for the assailant by his fellow police officers. The next day, the wife of a business mogul turns up nearby Ousmane's housing project. Ousmane draws connections between the two crimes and believes he is able to solve both crimes. In order to be heard by fellow police officers, Ousmane is forced to team up with visiting Parisian investigator Francois Monge, who has much more departmental clout. Despite coming from and working in very different neighborhoods, the pair find common ground through their policing style, including manhandling suspects and kicking butt.
Ely (Géraldine Nakache) and Lila (Leïla Bekhti) are two working class girls and best friends who dream of a glitzier more glamorous lifestyle. They sneak into a club where they meet Agathe (Virginie Ledoyen) who, impressed when Ely headbutts a man who was yelling at her, offers them a ride home. Lila lies about where they live giving a much chicer address that belongs to a family she used to babysit for.
The film depicts approximately 19 consecutive hours in the lives of three friends in their early twenties from immigrant families living in an impoverished multi-ethnic French housing project (a ZUP – zone d'urbanisation prioritaire) in the suburbs of Paris, in the aftermath of a riot. Vinz (Vincent Cassel), who is Jewish, is filled with rage. He sees himself as a gangster ready to win respect by killing a cop, manically practising the role of Travis Bickle from the film Taxi Driver in the mirror secretly. His attitude towards police, for instance, is a simplified, stylized blanket condemnation, even to individual policemen who make an effort to steer the trio clear of troublesome situations. Hubert (Hubert Koundé) is an Afro-French boxer and small time drug dealer, the most mature of the three, whose gymnasium was burned in the riots. The quietest, most thoughtful and wisest of the three, he sadly contemplates the ghetto and the hate around him. He expresses the wish to simply leave this world of violence and hate behind him, but does not know how since he lacks the means to do so. Saïd – Sayid in some English subtitles – (Saïd Taghmaoui) is an Arab Maghrebi who inhabits the middle ground between his two friends' responses to their place in life.
Laurent Monier est professeur agrégé d'histoire au lycée Fénelon d'Annecy. Le jour de ses 40 ans, il rentre dans son appartement plongé dans le noir ; il ignore que sa femme, ses enfants, sa belle-mère et ses amis sont en réalité dissimulés dans l'obscurité, n'attendant que le bon moment pour lui faire une surprise. Mais avant que son épouse n'ait pu rallumer la lumière, Monier décroche le téléphone et se croyant seul, bavarde avec l'appelant que l'on devine être sa maîtresse. Hélène, sa femme, rallume alors la lumière et s'enfuit dans sa chambre, alors même que leur jeune fils enclenche innocemment une cassette audio diffusant une chanson de joyeux anniversaire. Monier découvre le désastre sous l'œil narquois de son inénarrable belle-mère et de ses amis, qui ne savent plus où se mettre. Le couple divorce. Hélène étant nommée dans un lycée parisien, Laurent demande également sa mutation afin de rester près de ses enfants. Il se retrouve au collège Serge-Gainsbourg à Saint-Denis, établissement dit « sensible ». Dans ce collège, on l'affecte à la classe réputée la plus dissipée et indisciplinée de l'établissement, la 4e Techno. L'appartement de fonction qui lui est alloué, auparavant occupé par un professeur dépressif, se trouve dans la Cité des Mûriers, considérée comme la plus dure et violente des environs.
In 2010, social problems have overrun the poorer suburbs of Paris; especially Banlieue 13, commonly referred to as B13: a ghetto with a population of some two million. Unable to control B13, the authorities construct a high wall topped by barbed tape around the entire area, forcing the inhabitants within to survive without education, proper utilities or police protection behind the containment wall. Police checkpoints stop anybody going in or out. Three years later, the district has become overrun with gangs. Leïto (David Belle) is a fighter of such gangs. The beginning of the film depicts Leïto washing a case full of drugs down the drain, then escaping the gang who has come to collect the drugs. The gang's leader, Taha, kidnaps Leïto's sister Lola in retaliation; Leïto is able to rescue her and take Taha to the police station, but the police arrest Leïto and let Taha leave with Lola, stating that they're leaving the district.
Three years after the events of the original film, the authorities are attempting to return law and order to ravaged District 13. However, their efforts so far have failed to do so. The death of gang overlord Taha Ben Mahmoud has left a power vacuum, and total control of the area is now being fought over by five rival territorial gang lords who want to step into Taha's position. Leïto tries demolishing the walls surrounding the district on a daily basis, but is told to stop by African gang lord Molko, who sees the walls as protection from outside the district.
À Condé-sur-Ginette, situé en Seine-Saint-Denis, Tony Merguez et José Frelate, deux potes de banlieue, sont prêts à partir en vacances d'été à Santo Rico, mais se font arnaquer et ne pourront pas passer leur vacances comme ils voulaient, et devront rester à Condé-sur-Ginette. Pour rattraper le coup, Tony va tenter de se faire de l'argent en travaillant pour Zoran, la brute épaisse du quartier. Ce dernier l'engage pour vendre de l'herbe. De son côté, José, hébergé chez sa cousine Jenny, se voit proposer par cette dernière de travailler pour le juge Santiépi, le père de Clémence, en effectuant des travaux dans le manoir de celui-ci. Pendant ce temps, Narbé et Sammy partent en vacances, mais pas à Santo Rico. À l'aéroport, les deux amis sont maîtrisés par les agents de sûreté, puis se retrouvent dans un parc aquatique.
Four pathetic narrow minded petty criminals are mistaken for hitmen while ordered to shadow the philandering girl friend of their crime boss Carlito. As a result of a misunderstanding they get hired to accompany Léonore de Segonzac, the heiress of a big asset, on a race through Patagonia and "accidentally" kill her for the sum of four million dollars. They are chased by the principal and the true killers, which for their part are hunted by some UNO blue helmets.
Simone, a former rocker, is a dedicated homemaker who works in a city of the suburbs of Lyon. She deals especially with Robert, a former virtuoso accordion languishing in unemployment, and his five children. One day, Robert's wife left him to go to live in Paris with a Cop. Desperate, Robert decided to go to the capital to persuade her to come back. Meanwhile, Simone takes a few days of well-deserved vacation, went to Paris to visit her brother. She then finds herself in the same train compartment as Robert, and she discovered stunned on arrival at Lyon that his five children followed him. She must manage all this smala and can happily rely on the hospitality of her brother Pierrot (a transsexual, named now Rita), to take care of all these people. But Simone, who is secretly in love with Robert, will help him in his research and even get the opportunity to record an album with one of his old friends in the music business .
Based on a true story, the film chronicles the relationship of a teacher with teenagers who have long since dropped out of the school system. This teacher of Leon Blum high school at Créteil (Val-de-Marne), decides to pass a national competition whose theme is : "Children and adolescents in the Nazi concentration camp system". First rough and frustrating, the atmosphere will soon evolve into contact with a survivor of the camps and under the open intensity during the visit of a museum dedicated to this dark period of history. This experience will change their lives.
Sonia Bergerac (Adjani), who favours wearing a skirt, teaches French literature at a middle school in a poor immigrant-dominated neighborhood. She increasingly resents the daily burden of racist and sexist abuse from her violent unmotivated students, even more so since the departure of her husband. Her wearing of a skirt is considered sensitive given the school's large Muslim population, many of whom consider such clothing immodest.
The Yamakasi are seven young sport nuts of obviously different ethnic backgrounds who are all dedicated to parkour. They live in France in a banlieue, a ghetto especially designed for paupers and traditionally inhabited by immigrants from former French colonies. The motley group uses their sport to enjoy themselves without drugs and to gain recognition in a peaceful way. One morning, they are reported buildering the east side of the Bleuets building and evading the police after that. While they consider themselves good examples for youths in the banlieue, the local chief of police feels otherwise. From his point of view, they are reckless and dangerous individuals prone to become criminals while one of his men, Inspector Vincent Asmine believes they are dangerous only because children could hurt themselves by trying to emulate them. On this occasion each single member is introduced through his birth name and alias to the spectators of the film too: Zicmu (Ousmane Dadjacan), Tango (Jean-Michel Lucas), Rocket (Abdou N'Goto), the Spider (Bruno Duris), the Weasel (Malik N'Diaye), Baseball (Oliver Chen), and Sitting Bull (Ousmane Bana).
Mousten, Abdelkrim and Momo have been friends since childhood and they have never left their hometown, Melun. They have the same problems: singles, without motivation or ambition. The film follows their desperate attempts to get into the porn industry with the purpose of making easy money.