Definitely, Maybe (2008)

Will Hayes (Ryan Reynolds), a thirtysomething Manhattanite, is in the middle of divorce proceedings when his young daughter (Abigail Breslin) asks him about his life before marriage, including how he met and fell in love with her mother. Will flashes back to 1992 and recounts his romances with three women, changing their names so that his daughter must guess which one became his wife.