Goldie Hawn and Kurt Russell's own young kids were always with them while making the film. Their youngest, Wyatt Russell, took his first steps on the set.
The yacht's rocking motion kept causing crew members to fall asleep while shooting.
Kurt Russell says that this and Captain Ron (1992) are the two movies everyone seems to have on their boats.
Looking back on the film, Garry Marshall thinks that it's "still one of the funniest pictures I ever made."