The Bell Hop(1921)
OVERVIEW
A government official staying in a hotel puts some important secret papers in the hotel safe. A ring of spies out to get the papers manages to steal them from the safe, and a lady government agent enlists the help of the hotel's bumbling bellhop in getting back the papers and breaking up the spy ring.
TAGLINE:
His Use of a Traffic Cop in This Picture is the Scream of the Year