They Go Boom is a 1929 short comedy film directed by James Parrott and starring Laurel and Hardy.
Laurel & Hardy try to sleep in a rented room. Hardy, suffering from a cold, coughs frequently, while Laurel snores. Both of them have trouble falling asleep because of this. They try to solve their problems, but this results in total chaos. The owner of the room (played by Charlie Hall) threatens to throw them out. When the duo are back in their room, their air mattress is filled up accidentally with gas and blown up so big that Stan and Ollie are pressed against the ceiling. After they have realized the trouble they are in, they start to panic, at which point the hotel owner and a police officer enter the room. Oliver sneezes and the mattress explodes.
Stan Laurel - Stan
Oliver Hardy - Ollie
Charlie Hall - Landlord
Sam Lufkin - Policeman