Leave 'Em Laughing (1928)
Produced by Hal Roach
Directed by Clyde Bruckman
Featuring Stan Laurel and Oliver Hardy, Charlie Hall, Edgar Kennedy, Viola Richard, Dorothy Coburn
Stan's overnight toothache annoys both Ollie and the landlord. At the dentist's office, they are filled with laughing gas, causing headaches for traffic cop Edgar Kennedy as they try to drive home.