Comedic father-and-son duo, Ben and Jerry Stiller star in plenty of films together including "The Heartbreak Kid," "Zoolander," "Heavyweights" and "Hot Pursuit."
Three generations of the Douglas clan—Kirk, Michael and Cameron—starred together in "It Runs in the Family."
Henry Winkler's son Max plays the young Bluth Family lawyer in flashbacks in the comeback fourth season of "Arrested Development."
Scott Eastwood had small cameos in Clint's films: "Gran Torino," "Invictus," and "Trouble With the Curve."
Brendan Gleeson and son Domhnall both starred in the "Harry Potter" series. Brendan played "Alastair Mad-Eye Moody" in three films while his son played Ron's cool older brother "Bill Weasley."
Donald and Kiefer Sutherland both starred side by side in "Max Dugan Returns" and thriller "A Time to Kill."
Josh Brolin makes a cameo with father James in "My Brother's War." The duo first starred together in TNT TV movie "Finish Line" in 1989.
James and Scott Caan played father and son in "Mercy" about about a young novelist trying to find love with reformed bad boy, Johnny Ryan (Scott).
Charlie and Martin Sheen both starred in "Cadence"and "Wall Street."
*Emilio Estevez (Sheen's other son) originally appeared as an extra in "Apocalypse Now"; however, the scene was later removed from the final cut.