Gunga Din

Gunga Din is a 1939 American adventure film from RKO Radio Pictures directed by George Stevens and starring Cary Grant, Victor McLaglen, and Douglas Fairbanks Jr., loosely based on the 1890 poem of the same name by Rudyard Kipling combined with elements of his 1888 short story collection Soldiers Three. The film is about three British sergeants and Gunga Din, their native bhisti, who fight the Thugs, a resurgent Indian murder cult, in colonial British India.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster by "Copyright 1938 RKO Radio Pictures Inc. " (Public domain).