Risky Business
Risky Business gave Tom Cruise one of the most famous entrances of the 1980s, though a surprising number of people remember him sliding into frame wearing sunglasses.

The socks are real, the shirt is real, and the underwear is very much doing its part for cinema history, but the sunglasses are not there in the famous dance scene. Apparently, people just decided the moment was not Cruise enough and mentally added some eyewear.
