Tina Fey's daughter Alice adorably played the younger (but still sassy) version of Liz Lemon on 30 Rock.
Meryl Streep's lookalike daughters Mamie and Grace Gummer have played her daughters or the younger versions of herself in several movies, including Evening and Heartburn.
Judd Apatow has hired his wife Leslie Mann and kids Maude and Iris for multiple projects, including Knocked Up and This Is 40.
Susan Sarandon played an uptight mother to her quirky daughter, played by real daughter Eva Amurri, in The Banger Sisters.
Jaden Smith has played his real father Will Smith's fictional son in After Earth and The Pursuit of Happyness.