How to Save a Marriage and Ruin Your Life (1968)

Storyline

Battle of the sexes comedy about a free-wheeling bachelor who decides to save his friend’s marriage by proving that all mistresses are incapable of fidelity. The plot gets complicated when the bachelor offers to set up the wrong girl in a lavish love-nest and she accepts, thinking it to be a marriage proposal. How to Save A Marriage — And Ruin Your Life, the 1968 Fielder Cook romantic relationship sex comedy (“Don’t give in, you can’t win! Don’t give up, you can’t lose!”; “The wife you save… May be your own!”; “Written by Stanley Shapiro and Nate Monaster”) starring Dean Martin, Stella Stevens, Eli Wallach, Anne Jackson, Betty Field, and Jack Albertson