Robert Pattinson is not finding it easy adjusting to his status as the world's premiere heartthrob.

In fact, the actor says that his new-found fame – courtesy of the phenomenally-successful Twilight – has turned him into a "paranoid wreck."

"I’m always really worried about ruining [friends'] lives," he tells Entertainment Tonight. "Especially with people that aren’t famous. It’s such a massive change. I’m kind of a paranoid wreck.

"I’ve eaten a lot of room service. Now it’s funny, you can’t even get through to people on the phone. They won’t even let you ring people up. I can’t even ring down to reception and say let [visitors] up.

"I have to literally go down and carry them."

See RP looking not at all paranoid here.