Just for kicks, here's a list of longest lasting celebrity marriages:
Kevin Bacon and Kyra Sedgwick
Married: September 4, 1988 – present
Duration: 26 years
Michael J. Fox and Tracy Pollan
Married: July 16, 1988 – present
Duration: 26 years
Tom Hanks and Rita Wilson
Married: April 30, 1988 – present
Duration: 26 years
Julia Louis-Dreyfus and Brad Hall
Married: June 25, 1987 – present
Duration: 27 years
Mark Harmon and Pam Dawber
Married: March 21, 1987 – present
Duration: 27 years
Jamie Lee Curtis and Christopher Guest
Married: December 18, 1984 – present
Duration: about 31 years
Ozzy and Sharon Osbourne
Married: July 4, 1982 – present
Duration: 32 years
Danny DeVito and Rhea Perlman
Married: January 28, 1982 – present
Duration: 32 years
Johnny Cash And June Carter
Married: May 1, 1968 - May 15, 2003 (her death)
Duration: 35 years
George Burns and Gracie Allen
Married: January 7, 1926 - August 27, 1964 (her death)
Duration: 38 years
Mel Brooks and Anne Bancroft
Married: August 5, 1964 - June 6, 2005 (her death)
Duration: about 41 years
Paul Newman and Joanne Woodward
Married: January 29, 1958 – September 26, 2008 (his death)
Duration: 50 years
Ossie Davis and Ruby Dee
Married: 1948 - February 4, 2005 (his death)
Duration: 57 years
Jerry Stiller and Anne Meara
Married: September 14, 1954 - May 23, 2015 (her death)
Duration: 60 years