Everyone can be a little forgetful sometimes, but the consequences usually aren't quite as serious as invoking the wrath of Marvel.

However, it looks as if the actor may have made a slight mistake and forgotten to return his script - and who knows what Marvel would do if any the secrets contained within happened to leak out.

"Marvel like to keep everything a secret, so to all the producers who are probably freaking out because I forgot to hand in my script here is evidence that I’m destroying it," he addressed to camera in a video posted to his Instagram.

He then opened a wood-burning stove, popped the thing inside and ended with a triumphant, "job done".

Indeed, with so many cast members, it's likely Marvel will be keeping extra vigilant. Only recently, Josh Brolin seemed to accidentally confirm that Benicio del Toro's The Collector would also be featured in Avengers: Infinity War.