20 Things You Didn’t Know About Trainspotting

In another effort to do everything in his power to ensure he absolutely nailed this career-making moment, Ewan McGregor didn't just stop at understanding the ins-and-outs of heroin addiction. He wanted to look every bit the part too.

So, to successfully shed his pretty boy looks and physique for the moment he stepped onto set as the stick thin Renton, the actor decided to drop a staggering two stone of weight and shaved his head for the part. To achieve this dramatic weight loss, McGregor reportedly switched to grilling most of his food and traded beer for wine and gin whenever he felt the need for a tipple.

Needless to say, his grillin' and swillin' tactics undoubtedly did the trick as McGregor looked almost unrecognisable at a glance when he first sprinted onto the screen informing us all to "Choose Life".