Loads of fun here, folks.Freddy Shoop is freewheeling, laid-back, and responsibility-challenged. He also happens to be a Malibu high-school gym teacher who has his trip to Hawaii squashed after he's blackmailed into teaching summer school to an array of underachievers. In his first starring role, Mark Harmon is simply sensational, undeniably sexy, and irresistibly charming as a man who "got into this teaching gig to get my summers off"; rather than straining for laughs, Harmon milks his lines with uncommon modesty and underplays nattily. The students are three-dimensional and bereft of gooey pathos (with a couple of teenage Ebert-and-Siskel wannabes who are worth the price of admission), the soundtrack chock-full of bouncy pop tunes, the comic situations ripe with promise, the chemistry with love interest Kirstie Alley spot-on, and the film pleasingly convinces of the difference a dedicated teacher can make to a student. Directed (with a great deal of agility) by Carl Reiner.See it.