30 Seconds To Mars frontman Jared Leto has confessed that in order to give the best portrayal of his character, Rayon, in 'Dallas Buyers Club', he didn't step out of the role once while on the set of the movie. 

During a new interview with The Guardian newspaper, Leto explained that he remained in character throughout the entire project because he wanted to do the best job possible: "I stayed in character the entire shoot. I couldn't imagine doing it another way. I'd gone too far to pick it up and drop it off."

When asked if he chatted with co-star Matthew McConaughey about the amount of weight they both had to lose in order to be in the film, Leto admitted that the only socialising he did was as Rayon and not himself:

"I only communicated with other people as Rayon, so I wasn't talking about things like that with anyone."

He added that overall, he lost around 40lbs: "I lost around 40lbs [almost three stone/18kg] and then I stopped counting. For me, it was about how it made me feel, how it made other people treat me. I got down to something like 114lb [about eight stone], and that was enough to do what I wanted it to do, which was to change everything about me."

Watch Leto talking to Ellen DeGeneres about his recent Oscars success here: