The trailer for a horror comedy film featuring a killer Mickey Mouse was dropped just as Disney‘s 1928 short Steamboat Willie entered the public domain. The synopsis for the film, called 'Mickey’s Mouse Trap', reads: "It’s Alex's 21st birthday, but she’s stuck at the amusement arcade on a late shift so her friends decide to surprise her, but a masked killer dressed as Mickey Mouse decides to play a game of his own with them which she must survive."