Matthew McConaughey really does suffer for his art - the actor has lost 30 pounds to play an AIDs sufferer in 'The Dallas Buyers Club' - and looks unrecognisable as a result.
The usually buff star - who has been on an extreme diet to play AIDs patient Ron Woodruff in the film - was spotted on set in New Orleans.
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Matthew McConaughey on the set of 'The Dallas Buyers Club'
And just a few days earlier, the star went unnoticed as he caught a flight from LAX looking a shadow of his former self.
Matthew has shed the weight thanks to a high-protein, low carb diet and sticking to cardio workouts.
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The star went unnoticed as he caught a flight from LAX
Speaking about the challenging role to US Weekly, he said: "I'm playing a guy who was sick and would have loved to have been healthier but wasn't.
"For me, it's more of a mental thing than a physical thing. I'll get down to the weight I need to get to. I'm on my way, and it's what I need to do for the job."
Former 'Loose Women' star Denise Welch lost over two stone after becoming the face of LigherLife and taking up a new fitness regime in 2013.
(02 of19)
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At her thinnest Natalie wanted the whole world to know she'd lost weight. An inevitable work out DVD followed. (credit:Rex)
(03 of19)
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The Steps singer managed to shed the weight she gained after the band split, but then she fell pregnant and battled to lose it since. (credit:Rex)
(04 of19)
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Gastric-band-gate swept the nation when it was revealed Fern hadn't exactly told the truth about her weight loss. (credit:Rex)
(05 of19)
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Dawn French was always been known for being a bit on the larger side, and that's why we loved her. Well, there's less of her to love now as since her split with Lenny she's shed a fair few pounds. (credit:WENN)
(06 of19)
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That picture on the left actually scares us. It's like she wants us to motorboat in that cleavage. Bleugh. (credit:Rex)
(07 of19)
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Bristolian comic Justin Lee Collins has gone from rock-sized to rock star after dieting. (credit:Rex)
(08 of19)
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Former Emmerdale actress Pauline Quirke lost several stone after being told she was morbidly obese. (credit:Big)
(09 of19)
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It was revealed that Geri's dramatic weight loss was due to an eating disorder. Luckily she's settled back to a healthy weight now. (credit:Rex)
(10 of19)
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He's the man of the moment on The X Factor, but after the original Take That split Barlow ballooned. (credit:Wire Image / Big Pictures)
(11 of19)
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James Corden's role in One Man Two Guv'nors helped him to shift over five stone. (credit:WENN)
(12 of19)
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TOWIE's Gemma shed four stone on a bid to win Mick Norcross. She gave up the bags of crisps but didn't manage to bag the bloke. Good job she's got Arg now then. (credit:Big)
(13 of19)
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Pete's frame isn't the only thing shocking here. WTF is with that hair? Anyway, Pete shed the pounds when he split with Jordan. We didn't hear anything about that? (credit:Big)
(14 of19)
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Eh up, don our Kerreh look slim. Must 'av been on t'Weight Watchers. (credit:Big)
(15 of19)
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Jack Osbourne has struggled a lot with his size and is still yo-yoing with his weight now. (credit:Big)
(16 of19)
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Gerard Butler has never exactly been a porker, but he's swapped his stocky frame for a much leaner one. (credit:Big)
(17 of19)
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Jessie Wallace looked unrecognisable after slimming down, but since returning to Easties, Jessie has regained Kat's curvier figure. (credit:Big)
(18 of19)
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Superbad actor Jonah Hill made jaws drop across the world when he unveiled his new look at an awards bash. He's hoping to lose more too. (credit:Big)
(19 of19)
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The once teeny weeny, leather-chaps wearing Christina Aguilera got tongues a-wagging when she ditched her slight frame. (credit:WENN)