Los Angeles: Chris Hemsworth had to loose 33 lbs (15 kgs) for his role in film "In the Heart of the Sea" and the actor credits his wife Elsa Pataky for supporting him throughout the process.


Chris Hemsworth. Pic/Santa Banta

The "Thor" star, who had to lose weight in the given period of four weeks, was on a strict diet of only 500 calories a day, reported People magazine.