Sabotage

A Scotland Yard undercover detective is on the trail of a saboteur who is part of a plot to set off a bomb in London. But when the detective's cover is blown, the plot begins to unravel.

Sabotage is a 1937 crime thriller movie directed by Alfred Hitchcock, starring Oscar Homolka, John Loder, Sylvia Sidney. It holds an IMDb rating of 7.0/10 from 20,738 votes and runs 1h 16m.