Directed by William A. Seiter
Written by Joseph L. Mankiewicz
IMDB

Bert Wheeler and Robert Woolsey are barbers on an Indian reservation. They have no business because Native Americans can't grow facial hair, according to the film. The Native Americans come in and make Wheeler and Woolsey their ambassadors. They send them, along with some papers to be signed, to the Geneva peace convention.
On their way to the convention they meet an ammunition executive who wants to stop them. He gets a couple women to seduce them and steal the paper, but they fall in love with them. Plus they sing some songs.
This is a completely outrageous, no-hold-barred comedy/musical in the style of the Marx Brothers with a touch of the Young Ones. There is some racist shit going on in this movie. Their is a scene where at least 25 people are in blackface. Minus the racism, I found this movie incredibly funny and laughed almost non-stop. Definitely worth watching if you can get a hold of it.

9/10