The Douglas family through the years

Kirk Douglas in 1947.

Kirk and Diana Douglas pose with their second son, Joel, for his first portrait on Sept. 9, 1947, in Los Angeles.

Kirk Douglas and Rita Hayworth in Hollywood on March 14, 1952.

Kirk Douglas on the set of "Ulysses" on June 11, 1953.

Actor Kirk Douglas is greeted by his sons, Joel, left, 6, and Michael, 9, after arriving from Europe in Queens in December 1953.

Kirk Douglas portrays artist Vincent Van Gogh in the 1956 movie "Lust for Life."

Kirk Douglas during filming of "Paths of Glory" in 1956.

Kirk Douglas and his wife, Anne, arrive in New York on a cruise liner from Europe, Oct. 22, 1957.

Kirk Douglas in Hollywood with his sons Michael, 14, Eric, 1, Peter, 3, and Joel, 12, June 19, 1959.

Michael Douglas in 1969.

A young Michael Douglas receives performing advice from his father as the elder Douglas visited a Hollywood studio to watch his son work in his first film in 1969 in Los Angeles.

Kirk and Michael Douglas in 1976.

Michael Douglas holds the Oscar he won for co-producing "One Flew Over the Cuckoo's Nest." (March 29, 1976)

Michael Douglas marries Diandra Lucker in Los Angeles. (March 21, 1977)

Kirk Douglas and Raquel Welch at the 50th Academy Awards on April 3, 1978.

Michael Douglas and actress Glenn Close pose outside the Loew's Theater in Manhattan after the premiere of "Fatal Attraction." (Sept. 17, 1987)

Kirk and Michael Douglas at the People's Choice Awards. (March 13, 1988)

Oscar winner Michael Douglas poses with actress Marlee Matlin, who presented the award, backstage at the 60th Annual Academy Awards in Los Angeles, Calif. in 1988. Douglas won the best actor award for his role in "Wall Street."

The Douglas family gathers during a reception in 1991 in New York. From left are: Kirk Douglas; then-daughter-in-law Diandra; her son Cameron; Anne Douglas and Michael Douglas.

Michael Douglas, top left, taking a turn as producer, poses with the cast of "The Best of Friends," which includes his mother, Diana Douglas, center, before they go into rehearsal at the Westside Arts Theater in New York City on Feb. 16, 1993. His mother is flanked by co-stars Roy Dotrice, left, and Michael Allinson. Director of the off-Broadway effort, William Partian, is at top right.

Michael Douglas and his then-wife Diandra arrive at the second Barbara Steisand concert at the MGM Grand Hotel in Las Vegas in 1994.

Michael Douglas poses in Paris, France, where in 1998 he was awarded the medal of Officer of the Order of Arts and Letters by the French government for his acting career.

Michael Douglas and actress and later wife Catherine Zeta Jones sit together at ringside before the start of the WBC/IBF Welterweight Championship fight between Oscar De La Hoya and Felix Trinidad in Las Vegas in September 1999.

Michael Douglas shares a laugh with his father during the 1999 "Michael Douglas and Friends" charity golf event in California.

Kirk Douglas and Lauren Bacall in Normandy, France, Sept. 7, 1999.

Kirk and Anne Douglas in Manhattan, Nov. 17, 2000.

Douglas embraces his grandson Cameron at a screening of "It Runs in the Family" in 2003.

Actor Michael Douglas looks at his pregnant wife, Catherine Zeta-Jones, as they walk down the red carpet at the ninth annual Screen Actors Guild awards in Los Angeles in 2003. Zeta-Jones won outstanding performance in a supporting role for the film “Chicago."

Kirk and Michael Douglas in Beverly Hills. (April 7, 2003)

Michael Douglas and his son Cameron in Los Angeles. (April 7, 2003)

Kirk Douglas and his wife, Anne, renew their wedding vows after 50 years of marriage on May 23, 2004.

Cameron Douglas in Berlin. (Sept. 4, 2004)

Michael Douglas, left, and cellist Yo-Yo Ma, both UN “Messengers of Peace,“ at the 25th commemoration of the International Day of Peace at UN headquarters in 2006.

Catherine Zeta-Jones sits between Kirk Douglas and her husband, Michael Douglas, at the U.S. Open tennis tournament in Flushing, Sept. 8, 2007.

Michael Douglas at the Toronto International Film Festival in 2007.

Actors Danny Devito and Michael Douglas kiss as they arrive at the opening night of the 23rd Annual Israel Film Festival in 2008.

Michael Douglas arrives for the screening of “King of California” at the opening of the 33rd American Film Festival in Normandy, France, in 2007.

Michael and Kirk Douglas arrive for the funeral of Jack Valenti, an adviser of President Lyndon B. Johnson and a former president of the Motion Picture Association of America, in 2007.

Kirk Douglas tries out the slide during a playground dedication in Los Angeles, May 28, 2008.

Michael Douglas and his wife, Catherine Zeta-Jones, arrive at the National Board of Review of Motion Pictures awards gala in Manhattan in 2008.

Michael Douglas gestures during the presentation of the film "Beyond a Reasonable Doubt" in Barcelona, Spain. (2009)

Michael Douglas and his son Cameron at a film premiere in 2009.

Michael Douglas, Anne Douglas, Catherine Zeta-Jones and Kirk Douglas in Manhattan, May 24, 2010.

Michael Douglas and fellow actors, from left, Shia LaBeouf, Carey Mulligan and Josh Brolin, attend the 2010 premiere of "Wall Street: Money Never Sleeps" in Manhattan.

Michael Douglas, wife Catherine Zeta-Jones and their children, Dylan, 10, left and Carys, 7, pose with Mickey Mouse and Minnie Mouse pose in Lake Buena Vista, Fla. during a 2010 vacation.

Michael Douglas arrives at the 2012 Vanity Fair Oscar party in West Hollywood, Calif.

Michael Douglas and wife Catherine Zeta-Jones attend the Vanity Fair Tribeca Film Festival party at the New York State Supreme Courthouse. (April 2012)

Michael Douglas and Matt Damon, cast members in the film "Behind the Candelabra," take part in a panel discussion during the HBO Winter TCA Press Tour in Pasadena, Calif., in 2013.

Michael Douglas poses for photographers as he arrives for the screening of "Behind the Candelabra" at the 66th International Film Festival in Cannes, France. (May 2013)

Michael Douglas play Liberace and co-stars with Matt Damon in "Behind the Candelabra," which premiered on HBO in 2013.