Daniel Radcliffe loved gorging on calorific treats while filming What If

He said: "If you can get a job where people will pay you to eat Fool's Gold sandwiches, take it."

The motion picture, which is based on a play by T.J. Dawe, sees Daniel play a broken-hearted man who enters into a complicated relationship with a young woman played by Zoe Kazan, who wasn't quite so keen on indulging in the calorific sandwiches.

Daniel explained: "Zoe hated it, but she grew up here and I grew up in England. In LA you're all very healthy here, but I am not. I am 70 per cent Fool's Gold. I enjoyed it a lot."

As well as being able to gorge on hefty sandwiches, Daniel also enjoyed the opportunity to portray a "normal guy" following his role as Ig Perrish, who has two horns on his head which give him special powers, in 'Horns' and as the titular wizard in the 'Harry Potter' film franchise.

Speaking at a Q&A after a screening of 'What If' as part of the Los Angeles Times' Indie Focus Screening Series, he added: "There was something very attractive about playing a normal guy, someone you might meet.

"And I think a lot of my own sense of humour was definitely allowed to come out in the film."

Daniel isn't the only celebrity known to be a fan of Fool's Gold sandwiches, as late music legend Elvis Presley once flew over to Denver to have some of the snacks delivered to his plane.