In The Switch, Jennifer Aniston plays a woman who, entering her 40s, decides that wants to have a child and enlists the help of her friend, played by Jason Bateman, to help her select a sperm donor. Seven years later, Aniston is living happily with her son, but what she doesn’t know is that Bateman switched her samples and is the actual father. In the first clip from the film, posted by Yahoo!, we see the nexus of the plan.
As far as clips go, this was a strange one for the marketing department to pick. While most comedies sell their film with funny scenes as clips, this is more plot building than anything.