What movies should Hollywood never touch again (either Sequel or Reboot)?

There are films like Inception, Casablanca, Scare, The Godfather, and countless other that Hollywood might try to either "bring a new generation to" or they want to make money from us. And they have ruined some movies and the respected franchises like Footloose and Planet of the Apes (sorry Marky Mark). So what films should not be touched again?