1960s set comedy about Kerwin being forced to attend a straitlaced military school lbut being tempted by a pretty hippie girl. Although at times it falls back on clichés of the genre, it has a dynamite soundtrack, beginning with “For What It’s Worth” over the titles. Even at the obligatory dance hall scene, the band plays “Incense And Peppermints” and is then joined by girls who do commendable versions of Grace Slick and Janis Joplin. Only a stupid kitchen scene based on an urban myth involving a microwave (in 1967) is a headscratcher. Walters gets a “Introducing” credit even though had been…