Overview
For Those Who Think Young is a 1964 beach party film shot in Techniscope, directed by Leslie H. Martinson and featuring James Darren, Pamela Tiffin, Paul Lynde, Tina Louise, Bob Denver, Nancy Sinatra, Robert Middleton, Ellen Burstyn (billed as Ellen McRae), Claudia Martin and Woody Woodbury.
Plot
Rich kid and party animal Gardner Pruitt III (James Darren), known as "Ding" to his friends, is on the prowl for a new conquest in the form of teenager Sandy Palmer (Pamela Tiffin). In the meantime, Ding's influential grandfather, B.S. Cronin (Robert Middleton) wants to curtail the romance and shut down a popular local college teen hangout.
Sandy's guardians Sid Hoyt (Paul Lynde) and Woody Woodbury (playing himself) get mixed up in the proceedings, with Woody becoming the college kid's hero at the hangout. That sends up a red flag to the college administration, which sends in Dr. Pauline Swenson to investigate allegations of underage drinking.
When the clever kids discover that ex-gangster Grandpa Cronin used to be a bootlegger, they blackmail him into keeping the club open.
From Wikipedia (CC BY-SA 4.0).