Hemsworth shared a video of the fun moment to Instagram on Saturday, and expressed his gratitude for his fans in the caption.
"#ThorRagnarok is now in cinemas, so we decided to surprise some fans with a drop in last night! So awesome! Thanks to everyone for seeing the movie. The turn out and response is just amazing," the Australian superstar captioned the post. "Thank you, thank you, thank you for letting me do this for a living."