Philadelphia native Arthur Penn, who electrified cinema in 1967 as few filmmakers ever have by directing Faye Dunaway and Warren Beatty in Bonnie and Clyde, was born on this date in 1922.

With its unprecedented violence and romantic anti-heroes, Bonnie and Clyde revolutionized what was possible in Hollywood -- and not the least of that was sex and nudity.

For Arthur Penn, that prospect climaxed with Night Moves, wherein teenage Melanie Griffith bares lip-smacking labia-and-anus-intensive back-burger during a skinny dip.

Melanie Griffith in Night MovesAlthough as Bonnie, Faye Dunaway flashes just a hint of butt-crack, Penn included full toplessness from Shelley Plimpton (mom of Martha Plimpton) in his follow-up, Alice’s Restaurant.

But it’s in the Gene Hackman thriller Night Moves that Arthur Penn busted out the big, bare guns. Aside from Susan Clark (Webster’s mom!), and Jennifer Warren, 18-year-old Melanie Griffith not only reveals her ripe young casabas, she goes for a nude swim and points her bare butthole and open bush right at the camera as she dives underwater.

Arthur Penn, Mr. Skin salutes you with his mighty sword.