When actors take on superhero movie roles, they're all inevitably asked one question: are you looking at the source material? Jeff Goldblum, who's joining the Marvel Cinematic Universe as the cosmic character Grandmaster, revealed that he's checking out the "Thor" source material with a post on his Instagram page.

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In the post, fan-favorite actor Goldblum can be seen reading 1986's "Thor" #374 -- an issue by legendary creators Walt Simonson and Sal Buscema.

There is one thing to point out about this particular issue, though, before people start wondering if Goldblum is doing specific research for Taika Waititi's "Thor: Ragnarok." In short, no, he probably isn't -- not with this issue. To explain, "Thor" #374 is part of the 1986 X-Men event titled "Mutant Massacre." It features Thor rescuing a nearly dead Angel and interacting with the members of X-Factor. The Grandmaster doesn't appear in it at all, and it's set totally on Earth. On top of that, Fox owns the rights to all things mutant and X, and "Ragnarok" is a Marvel jam. Barring an industry-redefining, super-secret, massive movie-realigning announcement, this is Goldblum reading a Thor comic because it's a good Thor comic to read, not because it has any bearing on "Thor: Ragnarok's" plot.

Goldblum has figured out his stance on his character, though. “He’s a hedonist, a pleasure-seeker, an enjoyer of life and tastes and smells. I thought, ‘I can do that, I’ll bet!'” Goldblum said, adding, “[Director Taika Waititi] is encouraging me to improvise and make it my own, and that’s what I’m trying to do. I hope he doesn’t throw me out on the first day!”

Directed by Taika Waititi and starring Chris Hemsworth, Tom Hiddleston, Idris Elba, Cate Blanchett, Tessa Thompson, Anthony Hopkins, Karl Urban, Jeff Goldblum and more, "Thor: Ragnarok" opens on November 3, 2017.