London: 'Guardians of the Galaxy' director James Gunn says he is 'terrified' to release the Marvel movie. Gunn penned an open letter to his fans on Facebook to discuss his hesitations about the movie, reported Digital Spy.


Guardians of the Galaxy. Pic/Santa Banta 

"This is essentially my last week of actually making 'Guardians of the Galaxy'. It's been two years straight and I'm starting to become terrified of actually having to stop," Gunn posted on Facebook.