In 'Teen Beach Movie', what is the name of the 1960s beach movie within the movie?

In 'Teen Beach Movie,' the 1960s beach movie within the movie is 'Wet Side Story.'

Brady and McKenzie are swept into this fictional musical after riding a huge wave. The story is set in an imagined 1960s beach-party film, where surfers and motorcycle bikers compete for control of Big Momma's beachside restaurant. Its characters and setting deliberately echo the glossy teen musicals popular during that era.

The title is a playful reference to 'West Side Story,' the landmark 1957 stage musical and 1961 film. However, 'Wet Side Story' also draws heavily on real beach-party movies such as 'Beach Party,' which helped define early-1960s youth cinema. That blend of surf culture, rival groups, romance, and spontaneous musical numbers is the joke behind the fictional film.

A common mix-up is calling the movie 'West Side Story' or 'Beach Party.' Those are real productions that helped inspire the premise; 'Wet Side Story' is the made-up movie Brady and Mack enter. The sequel, 'Teen Beach 2,' also refers back to it as the film they watched together.