Jonah Hill's dramatic weight loss

The chipper chubby 'Superbad' star, Jonah Hill, reveals a dramatic new slimline image.

According to Us Weekly, the 27-year-old lost his goal weight of 30 pounds, to prepare for his new movie role in 21 Jump Street, a reboot of the classic TV series originally starring Johnny Depp.

The comedy actor signed on for the film early last year, but was forced to lose weight in order to convincingly play his character.

He reportedly lost the weight through seeing a nutritionist and working out with a personal trainer.

Hill showed off his new figure at the Venice Family Clinic Silver Circle 2011 Gala in Beverly Hills at the end of last month, subseqently posting new photographs on his Twitter profile yesterday.

The actor will co-star with Channing Tatum as two cops that go undercover in high schools to stop drug dealers.