A keystone in James Cagney's rise to stardom, Taxi stars the gritty actor as a hardened New York City cab driver. As a corporate interest attempts to eliminate all independent cabbies in the city, Cagney recruits a gang to stand up to them - violently. Directed by Roy Del Ruth, several of the gunfight sequences in the film used live machine-gun bullets. Taxi is also the first film in which Cagney danced and where he spoke his famous line, "You dirty rat!"