Hulk Smash (Your Phone): Mark Ruffalo Accidentally Livestreams Part of ‘Thor: Ragnarok’ at Premiere

Marvel’s Incredible Hulk isn’t incredible at tapping the “off” button on Instagram Live during the film’s Los Angeles gala premiere

Mark Ruffalo treated fans to an unexpected preview of “Thor: Ragnarok” on Tuesday night after he accidentally left an Instagram Live stream turned on during the first 15 minutes or so of the film’s gala premiere in Los Angeles.

Shhhh: Nobody let Marvel boss Kevin Feige read this.

Ruffalo had been livestreaming for fans from the red carpet. But it seems he put his phone into his pocket without turning Instagram Live off. The result: around 2,500 people watching the stream heard clear audio from the film, as well as the sound of Ruffalo and the audience laughing a lot.

The feed cut out at around 8:15 p.m., though it’s not clear if Ruffalo realized his goof, someone raced over to let the actor know what happened, or the feed simply stopped. Maybe he just checked Twitter, because everyone there knew about it.

Don’t worry, Mark. We won’t tell a soul.