If you notice, all of the actresses in the movie have high-waist bikinis that cover their navels. Most of the actresses in the "Beach" movies of the 60's wore regular bikinis of the time that did expose their navels but not Ms. Annette Funicello in Beach Party (1963). Ms. Funicello was still under contract with Disney at the time and was on loan to do the Beach movies. It is a widely reported myth that Mr. Walt Disney forbid Annette from exposing her navel. Ms. Funicello addressed this issue in her 1994 autobiography where explained she chose not to expose her navel "out of respect" for Mr. Disney. However, Ms. Funicello's navel is shown in the later installment of the Beach series.
Prior to the opening credits, the premiere of the Teen Beach included a dedication to beach party film legend and original Mouseketeer Annette Funicello, who passed the same year as Teen Beach Movie's premiere following a long, valiant battle against multiple sclerosis. The dedication read, "In memory of Disney Legend Annette Funicello, the world's most beloved beach movie star."
This is the only Disney Channel Original Movie that was released in 2013, making it the first time this has happened since 1997 with Under Wraps (1997).
Before "Cruisin for a Bruisin" Lela puts a quarter in the juke box. The price on the juke box is 24 cents.
The movie that Mack and Brady get trapped in is "Wet Side Story." The title is a play on the Broadway musical, West Side Story (1961), but the plot and setting more closely resemble Beach Party (1963) and its innumerable sequels.