Will and Jaden Smith

Young Jaden Smith has acted in several movies, including some alongside his father.

(Credit: Getty Images/Pascal le Segretain)

Tom and Colin Hanks

Colin Hanks has acted in films like "The House Bunny" and "Orange County". His father... well we all know the great movies Tom Hank has done.

(Credit: Getty Images/Stephen Lovekin)

Ron and Rance Howard

Rance Howard, pictured on the left, is a very popular actor. He appeared in several movies including "Apollo 13", "Independence Day", "Psycho" and "Jonah Hex". His son, Ron Howard, also entered the acting business, seeing his own full share of success.

(Credit: Getty Images/Kevin Winter)

Robert Downey Jr. and Sr.

Actor Robert Downey Jr. and father Robert Downey Sr. arrive at TIME's 100 Most Influential People Gala at Frederick P. Rose Hall on May 08, 2008 in New York City.

(Credit: Stephen Lovekin/Getty Images)

Rob and Carl Reiner

Actor/director Rob Reiner, right, is the son of actor/director Carl Reiner.

(Credit: Getty Images/Kevin Winter)

Britain's Prince Charles and Prince William

Britain's Prince Charles (R) walks with Prince William followed by his wife Kate (2L), the Duchess of Cambridge and the Duchess of Cornwall as they make their way to Buckingham Palace for the evening celebrations following Charles and Kate's wedding earlier in the day on April 29, 2011 in London.

(Credit: JOHN STILLWELL/AFP/Getty Images)

Nicholas Cage, Weston Cage

Actor Nicolas Cage, wife Alice Kim and son Weston arrive at the Disney Premiere Of "National Treasure" on November 8, 2004 at the Pasadena Civic Auditorium, in Pasadena, California. Weston has acted alongside his father in films like "Lord of War". Weston's passion, however, is his band Eyes of Noctum.

(Photo by Kevin Winter/Getty Images)

Master P. and Romeo

Master P., pictured on the right, is a successful rapper. His son, Romeo, also entered the family business of entertainment.

(Credit: Getty Images/Jesse Grant)

Martin and Charlie Sheen

Actors Charlie Sheen (L) and Martin Sheen present the award for Outstanding Supporting Actress in a Drama Series onstage at the 58th Annual Primetime Emmy Awards at the Shrine Auditorium on August 27, 2006 in Los Angeles, California.

(Photo by Vince Bucci/Getty Images)

Kirk and Michael Douglass

Kirk Douglass and his son, Michael, both found fame in Hollywood.

(Credit: Getty Images/Bryan Bedder)

George Clooney

Actor George Clooney is the son of broadcaster Nick Clooney.

(Credit: Getty Images/Michael Locciasano)

Gary and Jake Busey

Actors Gary Busey (L) and son Jake Busey arrive at the 13th Annual Night of 100 Stars Oscar Viewing Black Tie Gala, February 29, 2004 at the Beverly Hills Hotel in Beverly Hills, California.

(Photo by Giulio Marcocchi/Getty Images)

Kiefer and Donald Sutherland

Canadian actor Kiefer Sutherland hugs his father, actor Donald Sutherland, after being honored with the 2,377th Star on the Hollywood Walk of Fame, December 9, 2008 in Hollywood, California. Sutherland stars as Jack Bauer in the show "24."

(Credit: GABRIEL BOUYS/AFP/Getty Images)

Donald Trump

Donald Trump is seen here with his son, Eric.

(Credit: Mike Coppola/Getty Images)

George Bush

Sometimes, politics can be a family business too. Former President George W. Bush, right, is seen here with his father, former President George H.W. Bush.

(Credit: Getty Images/Christain Petersen)

Ben and Jerry Stiller

Actor Ben Stiller is seen here with his father Jerry Stiller, a comedian.

(Credit: Getty Images/Kevin Winter)