Black Mass (2015)
A notorious gangster becomes an FBI informant, unleashing a wave of gritty crime and bleak betrayals.
The true story of Whitey Bulger, the brother of a state senator and the most infamous violent criminal in the history of South Boston, who became an FBI informant to take down a Mafia family invading his turf.
How intense is Black Mass?
Black Mass is mildly scary, with graphic gore and brutal violence. Emotionally it is devastating. The pace is measured, and it is a full-attention watch. Rated R.
What Black Mass feels like
- Tone
- grittybleaksuspensefulpulpy
- Pace
- Measured
- Best for
- Full attention
- True story
- Yes, based on true events.
Where to stream Black Mass
Not on a US subscription service at our last check. Rent or buy may still be an option.
US availability via TMDB, last checked Sep 14, 2026. The app filters picks to the services you actually have.
Is Black Mass for you?
Is Black Mass scary?
Only a little. Black Mass has a few tense moments (scare level 1 of 3), nothing that follows you to bed.
Is Black Mass gory or violent?
Graphic gore (2 of 3) and brutal violence (3 of 3). If graphic gore is a dealbreaker, skip it.
Is Black Mass sad or heavy?
Yes. Emotional weight 3 of 3. It hits hard; do not plan anything light after.
Is Black Mass OK for kids?
It is rated R, so it is made for adults. Intensity: scare 1, gore 2, violence 3, each out of 3.
How long is Black Mass?
Black Mass runs 2h 3m.
Where can I stream Black Mass?
Black Mass is not on a US subscription service right now (rent or buy may still be an option).
Does Black Mass have a happy ending? spoiler-safe answer
No. Brace yourself.
Cast and crew
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