Before and after: Jennifer Aniston's man Justin Theroux leads 'man makeover' trend

Jonah Hill is - or rather was - a larger than life star.

His overweight frame lent comedic clout to his funnyman roles in films such as Superbad and Get Him To The Greek.

But the actor was required to drop the pounds for a role in upcoming thriller 21 Jump Street.

And he stepped out recently showcasing an incredibly slimline physique