The 'Avengers' cast are arguing over a stolen pillow on Twitter

Admit it: if you got the chance to spend time on the movie set of one of the world's biggest film franchises, you'd be just a tiny bit tempted to steal something, wouldn't you?

Nothing major -- maybe some small, easily missed artifact you could tell the grandkids about one day, or perhaps pop up on eBay further down the line.

Or, in Mark Ruffalo's case, maybe you'd go one step further.

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On Thursday night, Thor himself finally responded to that blatant admission of theft. And he added another charge into the mix.

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Finally, Jeremy Renner -- aka Hawkeye -- got involved. And the mystery was finally solved.

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There aren't many people who could get away with stealing from Thor. But we think these two will probably be okay.