Director James Gunn Fired From 'Guardians of Galaxy Vol. 3' Over Past Tweets Disney and Marvel Studios have cut ties with Guardians of the Galaxy film series writer and director James Gunn. The decision was made soon after controversial old tweets were found on Gunn's now-deleted Twitter account. In the tweets, Gunn jokes about topics such as pedophilia and rape. Gunn posted a statement on Twitter regarding the firing before deleting the account. James Gunn, via Twitter There is no news yet on who will replace Gunn as director of the third 'Guardians' movie.