Commandos and Hot Babes (1982)

Pushing forty, negligent Vlassis finds himself between a rock and a hard place. On the one hand, Vlassis must finally marry his fiancée for the past nine years, Froso, and on the other hand, he has to re-enlist the military to redo basic training. Saved by the bell, Vlassis rejoins the army, only to find himself neck-deep in trouble, struggling to keep up with the young recruits of an elite parachute division. Can Vlassis and his friends--three equally incompetent brothers-in-arms--survive one long month in the army?