If u haven't seen this awesome holiday special, stop everything and go watch it! For this list, we’ll be looking at the sneakiest details, callbacks and pop culture references hidden in this heartwarming space tale...
ET's Ash Crossan catches up with director James Gunn to discuss all things 'Guardians of the Galaxy,' from the upcoming 'Guardians Vol. 3,' to the lighthearted 'Guardians of the Galaxy Holiday Special'