It Runs in the Family is a 2003 American comedy drama film directed by Fred Schepisi and starring three generations of the Douglas family: Kirk Douglas, his son Michael Douglas, and Michael's son Cameron Douglas, who play three generations of a family. Diana Douglas, real-life mother to Michael Douglas and ex-wife of Kirk, plays Kirk's character's wife. Joel Douglas, second son of Kirk and Diana, was the associate producer. This was the final film appearance of Diana Douglas before her retirement from acting and subsequent death on July 3, 2015 at the age of 92 years.