"Guardians of the Galaxy" director James Gunn took to Facebook to share a fan's story about his son's connection to the film. In the post, "Guardians" fan Josh Dunlap recounts how his four-year-old son, who has dyspraxia, learned how to express himself through watching Groot.

I love making movies because of stories like this. Thank you.Posted by James Gunn onWednesday, August 19, 2015

Starring Chris Pratt, "Guardians of the Galaxy Vol. 2" opens on May 5, 2017.