Popsugar Entertainment Movie Pictures Marvel Movie Characters Over the Years Photos From Iron Man to Infinity War, See How Much the Avengers Have Changed Over the Years 4 May 2018 by Mekishana Pierre View On One Page Photo 86 of 125 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 86 Groot We meet Groot in Guardians of the Galaxy. The best damn sentient tree there ever was. RIP. Previous Next Start Slideshow Movie PicturesMoviesThe Avengers