'I was just eating, eating and eating': Zac Efron reveals how he piled on 18lbs for movie role

He rose to fame as the fresh-faced star of High School Musical.But these days Zac Efron in looking decidedly beefier - especially so after gaining 18lbs recently for a movie role.The 23-year-old actor was pictured on the red carpet in Los Angeles last night with a noticeably fuller face and packed-out physique. Fuller-faced: Zac Efron pictured at a Hollywood's Spot 5750 last night has