1 of 9
2 of 9
3 of 9
MAUDE & IRIS APATOW: THIS IS 40
With dad Judd Apatow serving as director and producer, Maude, 14, and younger sister Iris, 10, will again show off their comedic chops alongside real-life mom Leslie Mann and Paul Rudd in the upcoming Knocked Up spinoff, playing the daughters of a dysfunctional married couple dealing with getting older.
4 of 9
5 of 9
6 of 9
TATUM O'NEAL: PAPER MOON
Prior to their troubled relationship, the actress commanded the screen with father Ryan O'Neal in 1974's acclaimed Paper Moon, which earned the child star an Academy Award for Best Supporting Actress at age 10, making her the youngest Oscar winner ever.
7 of 9
ELLA TRAVOLTA: OLD DOGS
At age 8, John Travolta's little girl charmed audiences as Emily, the twin daughter of a divorced sports marketer in Disney's 2009 comedy. "I want to see her have a fruitful career and I really think it's time to introduce her, sort of like Will Smith introduced his son," he told Parade.
8 of 9
SCOUT WILLIS: THE SCARLET LETTER
Seems like the Willis girls just can't get enough of the silver screen: At age 4, middle daughter Scout, 21, held her own during a dramatic scene with mom Demi and Gary Oldman in the 1995 film.
9 of 9
JADEN SMITH: THE PURSUIT OF HAPPYNESS AND AFTER EARTH
The young actor-musician, 14, served as his dad's ultimate movie sidekick, playing the son of a struggling salesman in the 2006 biographical film. The pair teamed up once more for the upcoming 2013 action-adventure flick, After Earth, playing a father and son who encounter a deserted planet after a crash landing.