Dad: Kirk Douglas
Son: Michael Douglas
The Douglas men famously had trouble getting along with each other in the '70s and '80s, but the dapper duo worked through their problems and reconciled in the '00s. Since then, Kirk and Michael, both actors and producers, have grown very close and they even made a public declaration of "forgiveness" to each other in a 2005 HBO documentary about their famous family. —XFINITY Entertainment Staff (Photo by Albert O. Rodriguez/Getty)
The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.