A "mobster movie" is a type of film that tells a story about organized crime, usually focusing on the lives of criminals involved in illegal activities like drug trafficking or extortion. Full definition
There are plenty of seemingly obligatory plot devices in G - Men, Cagney does... well, Cagney and its a must see for any fan of early mobster movies. (rottentomatoes.com)
And you'd better believe he had to pitch the hell out of his time traveling mobster movie, so this is what he made. (gizmodo.com)
One of the best mobster movies, or an empty mess? (firstshowing.net)