Media playback is unsupported on your device

Matthew McConaughey's career transformation

30 January 2014 Last updated at 11:23 GMT

Actor Matthew McConaughey had to live like a hermit and lose over three stone for his role in Dallas Buyers Club.

But his portrayal of the real-life Ron Woodroof, an HIV positive Texan who is given just 30 days to live, has earned him an Oscar nomination.

Just a few years ago the actor was more associated with romantic comedy roles.

BBC Breakfast's Charlie Stayt spoke to McConaughey to find out how he transformed his career.

Copyright © 2015 BBC. The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.