Whether it's enduring the painful diet of Matthew McConaughey to beefing up like Mark Wahlberg, it would appear that there are no limits to an actor's commitment.
Now Thor star Chris Hemsworth has become the latest actor to go to extreme lengths for his part in new movie, The Heart of the Sea.
The Aussie actor, who is known for his rippling muscles, has transformed his wiry body in a way that we've never seen him before after embarking on a gruelling diet of just 500 calories a day in preparation for his role.
Chris, 32, who plays crew member Owen Chase who has been stranded at sea for 90 days, posted the pic on Instagram with the caption: "Just tried a new diet/training program called "Lost At Sea". Wouldn't recommend it.."
