"Guardians of the Galaxy" director James Gunn loved "Deadpool." In a recent Facebook post, he called it "original" and "damn good." However, he's afraid studios will attempt to recreate "Deadpool's" success by copying the film's formula -- and he explained how and why that hurts the future of superhero films and what action Hollywood should take instead.

"After every movie smashes records people here in Hollywood love to throw out the definitive reasons why the movie was a hit," he wrote. "I saw it happen with 'Guardians.' It 'wasn't afraid to be fun' or it 'was colorful and funny' etc etc etc. And next thing I know I hear of a hundred film projects being set up 'like "Guardians,"' and I start seeing dozens of trailers exactly like the 'Guardians' trailer with a big pop song and a bunch of quips. Ugh."

5 Ways "Deadpool" Flipped the Superhero Movie Script

"For the theatrical experience to survive, spectacle films need to expand their definition of what they can be. They need to be unique and true voices of the filmmakers behind them. They can't just be copying what came before them," he continued.

"So, over the next few months, if you pay attention to the trades, you'll see Hollywood misunderstanding the lesson they should be learning with 'Deadpool,'" he explained. "They'll be green lighting films 'like "Deadpool"' -- but, by that, they won't mean 'good and original' but 'a raunchy superhero film' or 'it breaks the fourth wall.' They'll treat you like you're stupid, which is the one thing 'Deadpool' didn't do."

"But hopefully in the midst of all this there will be a studio or two that will take the right lesson from this -- like Fox did with 'Guardians' by green-lighting 'Deadpool' -- and say -- 'Boy, maybe we can give them something they don't already have,'" he concluded.

Directed by Tim Miller, "Deadpool" stars Ryan Reynolds, T.J. Miller, Morena Baccarin and Gina Carano. The film is now in theaters.