Johnny Depp Will Creep You Out in New 'Black Mass' Trailer

You don't wanna mess with Depp.

Johnny Depp makes for one terrifying gangster.

The 52-year-old actor takes on the role of real-life mobster Whitey Bulgar in Black Mass, and his portrayal of the criminal is sure to make this one of the more beloved mob movies.

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The film tells the true story of how Bulgar, the brother of a state senator (Benedict Cumberbatch), became one of the most infamous and violent gangsters in the history of South Boston, maybe even the United States. It also delves into when he became an FBI informant and took down a mafia family that was invading his turf.

Depp and Cumberbatch aren't the only big names in this movie. Joel Edgerton, Kevin Bacon, Adam Scott, Dakota Johnson, Juno Temple, Cory Stoll and Peter Sarsgaard also among the cast.

The soundtrack to Black Mass promises to be just as good as the movie. The trailer is set to Yelawolf's song "Till It's Gone," and makes the scenes all the more intense.

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Will you see Black Mass when it hits theaters on Sept. 18?