Another night of TCM’s “Spring Break” films, tonight begins with a 1965 film that, like the others, is not very good – but, like the others, is fascinating to watch regardless. Sometimes these movies are entertaining, truly, because of the scenery. Other times, it’s the bafflingly incongruent supporting cast (Don Rickles and Buster Keaton?) Still other times, as with this movie starring Frankie Avalon and Deborah Walley, it’s the musical performances – w