Tina Fey's daughter Alice adorably played the younger (but still sassy) version of Liz Lemon on 30 Rock.
Sage Stallone played Rocky Jr. in his father's film, Rocky V.
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.
Francis Ford Coppola received endless flack for hiring his daughter Sofia for Godfather III.
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.
Angelia Jolie's daughter Vivienne will make her acting debut in this morning's Malificent.
Bryan Cranston put his daughter Taylor in an episode of Breaking Bad that he directed.
Jaden Smith has played his real father Will Smith's fictional son in After Earth and The Pursuit of Happyness.
Demi Moore brought daughter Rumer Willis along for Now and Then and Striptease.