Of Course Director James Gunn was the Dancing Baby Groot in #GuradiansoftheGalaxyVol2!

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"Ah yes, another video of me doing the motion reference work for Baby Groot. Believe it or not, I actually did three different versions of this dance at three different times. The first time was when I first wrote the scene, in my office at home, recorded by Simon Hatt on his iPhone. That one was mostly so that I could remember the camera angles and camera movements I had in my head while writing than it did the actual dance. The second time was on set in Atlanta with a single camera and our visual effects team. That time it was doing the dance full out - there were some bits and pieces we used - but because Groot is moving and the camera was stable I was only able to travel for very short periods. And so we did it again, this time in Los Angeles, with many cameras lined down a long space so that I could actually do all the long walks and jumps Groot was doing. That's when this is from.
For those of you who've asked, bits of the dance were ideas of things I had in my head, or things designed for the already planned camera movies, but most of it was freeform and made up on the spot.
The other question I've gotten asked a lot is whether or not I was just doing my regular dancing or was it in character. The answer is of course in character - I think you can see clearly in this video I'm trying to move my body that works for a little tree more than what I'd be dancing like in a nightclub in L.A.
This is of course all courtesy of the visual effects company Framestore, who turned this stuff into something magical, creating one of the most impressive single shots ever."
(James Gunn)