We imagine that Marvel producers have had their fair share of headaches off of Hulk star Mark Ruffalo given his proneness to blunders.

However, even they must have found his latest one hilarious.

The actor accidentally live-streamed the first 10 minutes or so of Thor: Ragnarok on Tuesday during its Los Angeles premiere, a few weeks before the movie is due out.

Ruffalo basically forgot to turn off his live-stream from the red carpet earlier in the evening, leaving his phone in his pocket with only the sound from the cinema coming through to fans.

However, after a few minutes the star finally cottoned on and shut it off, though not without an immense look of guilt. Oops.

Mark Ruffalo leaked a sneak peek of #ThorRagnarok from yesterday's premiere! pic.twitter.com/JE5VfmQMPY— Best of Marvel (@thbestofmarvel) October 11, 2017

It didn't spoil too much, of course, given that it was the beginning of the movie. Still – pretty funny.

Back in July, Ruffalo seemingly gave away the ending to Avengers: Infinity War in an interview with Good Morning America, which we imagine might have been a ruse.

Still, we don't think the blunder has held the star back – after all, Ragnarok is set to be the first of a three-part story for the Hulk… so he certainly has his Marvel work cut out for him over the next few years.

BONUS: Thor: Ragnarok trailer