César Borgnoli, un concessionnaire de voitures italiennes vivant largement au-dessus de ses moyens, est au bord de la ruine. Sa sœur Alex, qui vit en couple avec sa compagne Kim, lui propose de sauver le garage familial en lui mettant un marché en mains.
Louis a été abandonné par sa mère alors qu'il n'avait que quelques semaines. Aujourd'hui âgé de seize ans, et malgré la réticence de ses parents adoptifs, Louis veut savoir d'où il vient. Il se met alors en route vers le sud.
Après avoir épié sa mère dans la boutique de fleurs où elle travaille, il lui apprend qu'il est son fils. Bouleversée par ce retour brutal, Solange nie. Elle rejette violemment cette vérité : trop douloureux de plonger dans un passé qui refait surface. Mais Louis s'acharne...
Thomas, un adolescent adopté et mal dans sa peau, se met en quête de son passé pour comprendre pourquoi sa mère l'a abandonné, en compagnie de son frère, lorsqu'il avait 4 ans. Il cherche alors sa mère sans en parler ni à son frère ni à ses parents adoptifs. Il découvre alors qu'elle n'est plus avec son père biologique, qu'elle a eu un troisième fils avec un autre homme et qu'elle vit désormais seule avec cet autre garçon qu'elle n'a pas abandonné.
When she was 14, Karen (Annette Bening) became pregnant and gave her daughter up for adoption. The decision to give up her child has always haunted her. Upon meeting laid-back Paco (Jimmy Smits), Karen permits her anxiety and mistrust to get the best of her. She gradually calms her anxiety through the relationship with Paco.
Kate and John Coleman (Vera Farmiga and Peter Sarsgaard) are experiencing strains in their marriage after their third child was stillborn. The loss is particularly hard on Kate, who is also recovering from alcoholism. The couple decides to adopt a 9-year-old Russian girl, Esther (Isabelle Fuhrman) from a local orphanage. While Kate's and John's deaf daughter Max (Aryana Engineer) embraces Esther immediately, their son Daniel (Jimmy Bennett) is less welcoming. Kate suspects that there might be problems in Esther's background when Esther's knowledge of sex extends beyond her age. Her suspicions deepen when Esther seriously injures another girl who had bullied her.
Jin-hee (Kim Sae-ron) is a 9-year-old girl whose father leaves her at an orphanage after remarrying. Before leaving her at the orphanage, her father buys her new clothes and a cake to convince her that she is going on a trip. (This coincides with the Korean title, which literally means "traveler" or "tourist") In the orphanage she tries to come to grips with the abandonment by her parents and insecurities about a possible adoption. She gradually makes friendships, although she retains the belief throughout most of the movie that her father will return to take her back, and struggles (sometimes violently) not to adjust to her surroundings. In the end, Jin-hee is adopted by French parents who are eagerly waiting for her at an airport to meet their new child.
The film chronicles the experience of a gay Swedish couple, Sven (Torkel Petersson) and Göran Skoogh (Gustaf Skarsgård) as they move into a new suburban neighborhood and adopt a child, beginning with their welcoming party. After meeting their new neighbors and settling into their jobs, they decide to adopt a child. Although they are married, no country is willing to let a gay couple adopt any of its children. After initially being turned down by the adoption agency, a Swedish orphan becomes available, whom they readily agree to adopt. However, a typographical error on the papers changed the child's age from "15" to "1.5". When their new son Patrik (Tom Ljungman) arrives, they are shocked to find him a troubled teenager with a criminal background.
Sixteen-year-old Minnesota high-schooler Juno MacGuff (Ellen Page) discovers she is pregnant with a child fathered by her friend and longtime admirer, Paulie Bleeker (Michael Cera). She initially considers an abortion. Going to a local clinic run by a women's group, she encounters outside a schoolmate who is holding a rather pathetic one-person pro-life vigil. Once inside, however, Juno is alienated by the clinic staff's authoritarian and bureaucratic attitudes. She is particularly offended by their calling her "sexually active", a term which she feels demeans the highly emotional event by which she became pregnant. All of this decides her against abortion, and she decides to give the baby up for adoption. With the help of her friend Leah (Olivia Thirlby), Juno searches the ads in the Pennysaver and finds a couple she feels will provide a suitable home. She tells her parents, Mac (J.K. Simmons) and stepmother, Bren (Allison Janney), who offer their support. With Mac, Juno meets the couple, Mark and Vanessa Loring (Jason Bateman and Jennifer Garner), in their expensive home and agrees to a closed adoption.
David Gordon (John Cusack), a popular science fiction author, was widowed when his wife Mary died as they were trying to adopt a child. Two years later, David is finally matched with a young boy named Dennis (Bobby Coleman). Socially awkward, Dennis believes he is from Mars and only goes outdoors when under the cover of a large box to block out the sun's harmful rays. Although initially hesitant to adopt a boy by himself, David recognizes a part of him in Dennis and slowly coaxes him out of the box and into his home.
Thelma (Cherry Pie Picache), together with her husband Dado (Dan Alvaro) and teenage sons Gerald (Alwyn Uytingco) and Yuri (Jiro Manio), are an urban poor family hired by a local foster care facility to provide temporary home and care to abandoned babies pending the latter's formal adoption. The inevitable separation is heart-rending for the foster family.
En 1960, la guerre d'Algérie bat son plein. Le jeune Messaoud, 9 ans, orphelin de mère, est confié à une famille d'accueil établie dans le Berry, constituée de Gisèle et de Georges, bourru au grand cœur, tandis que son frère aîné poursuit un autre destin. Georges, facteur de son état, ancien combattant de la France Libre et de la guerre d'Indochine, un brin raciste, ne sait rien de la confession musulmane ni de l'origine algérienne du garçon que son épouse a rebaptisé « Michel » (ou « Michou ») d'Auber puisqu'il est né à Aubervilliers, et dont elle a décoloré les cheveux bruns. Michou découvre alors la France profonde.