By now, everyone is familiar with the ALS Ice Bucket Challenge, where people heed the call to throw buckets of ice water on themselves to spread awareness of ALS and raise donations to support The ALS Association. Everyone, from your many Facebook friends to A-list celebs have been participating, but, for us, there's nothing like seeing the likes of Thor, Iron Man and Star-Lord step up to the plate.

So far in the Marvel movie universe, Robert Downey Jr., Chris Hemsworth, Chris Evans, Chris Pratt, Zoe Saldana (well, her husband, because she's pregnant), Dave Bautista, Vin Diesel, Tom Hiddleston, Zachary Levi, Jaimie Alexander, Lee Pace and director James Gunn have all completed the ALS Ice Bucket Challenge, and many have already posted their videos online. Though, the best of the bunch so far is Pratt, who iced himself in an unexpected but hilarious way, while Diesel came in second with his nomination of controversial Russian President Vladimir Putin.

The ALS Ice Bucket Challenge, while completely dominating your Twitter and Facebook feeds, actually works. As of August 20, it has since brought in upwards of $31.5 million in donations. So, reach deep down and find it in your hearts to donate by clicking HERE. And, to keep you entertained, watch all your favorite Marvel movie stars take the challenge below. We'll update you as more videos hit the 'net.

Watch more celebs take the Ice Bucket Challenge below.

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