Trivia / Summer Rental

• Development Gag: After being told they have to leave, Jennifer shouts at Laurie to stop saying everything she says. Kerri Green (Jennifer) dubbed all the lines for Aubrey Jene (Laurie).
• Money, Dear Boy: Though he clearly put his heart and soul into his performance, John Candy remarked in an interview that one of the reasons he accepted the role was "to pay for a new house".
• Stillborn Franchise: John Candy and director Carl Reiner had both discussed a possible sequel to this movie that they dubbed The Last Holiday, but Paramount nixed the idea.