Flashman (movie, 1967)

Though set in England, Flashman is another fun Italian production from the late 60s that leans on -attempted- humor and is heavily inspired by Batman. He's even got a very Battish theme song…. The somewhat convoluted plot concerns two gang of thieves who rob the same bank. One is a band of babes headed by a ruthless woman; the other is a group of thugs lead by a guy who has a serum that can turn anyone invisible. The employee they rob is none other than Flashman in disguise.