- Country: USA
- Genres: Comedy, Short
- Release: 1928-01-28
- Director: Clyde Bruckman , Leo McCarey
- Writers: Reed Heustis , Hal Roach
- Language: None | English
- Stars: Stan Laurel , Oliver Hardy , Charlie Hall , Edgar Kennedy , Dorothy Coburn , Edgar Dearing , Otto Fries , Al Hallett , Jack Hill , Jack Lloyd
- Runtime: 22 min
- Awards: N/A
- AKA: Mal di denti (Italy) , Aerio geliou (Greece) , Leave 'em Laughing (United States of America) , Laissez-nous rire (France, French Republic) , Αέριο γέλιου (Greece) , Lattergas (Denmark) , Stan și Bran: Lăsați-i să râdă! (Romania) , Пускай смеются , Leave 'em Laughing , Nauru päällä (Finland)
- Plot: Leaving the dentist's office, where Hardy's teeth have been extracted by mistake, the boys, still under the influence of laughing gas, meet up with a traffic cop (Kennedy) and cause a huge traffic jam.
- IMDB:tt0019079
Leave ‘Em Laughing Cast · · · ALL
Clyde Bruckman
Director
Leo McCarey
Director
Stan Laurel
Stan
Oliver Hardy
Ollie
Charlie Hall
The Landlord
Edgar Kennedy
Cop
Dorothy Coburn
Dentist's Nurse (uncredited)
Viola Richard
Dentist's Nurse (uncredited)
Tiny Sandford
Dental Patient (uncredited)