Leto reveals weight-gain nightmare

Jared Leto has vowed never to fatten-up for a movie role again, after he piled on 27.2kgs to play John Lennon's killer - and ended up in a wheelchair.

Leto is still suffering the side effects of "gorging and force-feeding" himself for the role of Mark Chapman in Chapter 27, and he fears he will never regain his once-fit physique.