The creator of the hit animated series 'Family Guy' has said that the show could become a film in the future.

Speaking to The Hollywood Reporter about the possibility of a film, Seth McFarlane said: "We have been trying to figure out how to do that and the series at the same time without the series suffering."

He said that he had no storyline ideas for a film at present and that US TV network Fox would have to sign off on a film.

MacFarlane added that he would like to keep the storyline for any film small.

"I don't want to do 'The Griffins must save the world'," he said.