Simon Pegg has said he believes cinema has 'dumbed down', criticising the industry's focus on 'childish' comic book and superhero subject matter.

The actor, who is currently co-writing the script for Star Trek 3, believes that cinema has been 'infantilised'.

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"Obviously I'm very much a self-confessed fan of science fiction and genre cinema but part of me looks at society as it is now and just thinks we've been infantilised by our own taste," he told the Radio Times.

Pegg continued: "Now we're essentially all consuming very childish things – comic books, superheroes... adults are watching this stuff, and taking it seriously."

"It is a kind of dumbing down, in a way, because it's taking our focus away from real-world issues."

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He went on to say: "Films used to be about challenging, emotional journeys or moral questions that might make you walk away and re-evaluate how you felt about... whatever."

Pegg recently revealed he is tempted to big up Scotty's role in Star Trek 3 - but added that he realises he can't make the new film all about his own character.