Frank Sinatra and Joi Lansing in Marriage on the Rocks (1965)

Frank Sinatra and Joi Lansing in Marriage on the Rocks (1965)

Ad-agency president Dan Edwards who, when he goes to Mexico to celebrate his nineteenth wedding anniversary, winds up getting divorced by mistake – whereupon his wife Valerie marries his best friend Ernie Brewer by mistake. Frank’s future pop star daughter Nancy Sinatra has a featured role.