The Addams Family (movie version, though the TV series came first). Other films that would make good Hallowe'en costumes because they're famous, though not really "fashion": The Munsters (similarly, a TV show first), scI-fi (Barbarella, Star Trek, Star Wars, The Rocky Horror Picture Show), fantasy (Mary Poppins, any Disney animation), Rocky, Shaft, Tom Cruise in "Risky Business", Men in Black.
They're creepy and they're kooky... We can’t think of a more fitting (and totally creepy) family costume than this. Little Pugsley and Wednesday are beyond adorable. And the hand on dad's shoulder is spookily good touch. See more at Loft 3 Photography » - GoodHousekeeping.com