This is one of the totality proof and how professional actors and actresses who are willing to lose and gain their weight for the role they play.

1. Christian Bale – The Machinist

Wieght Loss : 63 pounds (from 173 to 110 pounds)

Title : The Machinist

Year : 2004

Director : Brad Anderson

Cast as : Trevor Reznik

Movie Tagline : “How do you wake up from a nightmare, when you’re not asleep?”

Fact from IMDB : The producers of the film claim that Christian Bale dropped from about 173 pounds in weight down to about 110 pounds in weight to make this film. They also claim that Bale actually wanted to drop down to 100 pounds, but that they would not let him go below 120 out of fear that his health could be in too much danger if he did. His diet consisted of one can of tuna and an apple per day. His 63-pound weight loss is said to be a record for any actor for a movie role. He regained the weight in time for his role in Batman Begins (2005).

2. George Clooney – Syriana

Weight Gain : 35 pounds

Title : Syriana

Year : 2005

Director : Stephen Gaghan

Cast as : Bob Barnes

Movie Tagline : “Everything is connected”

Fact from IMDB : George Clooney gained 35 pounds on pasta-heavy diet to play CIA operative Robert Barnes. The actor also shaved his hairline for the right look.

3. Matt Damon – Courage Under Fire

Weight Loss : 40 pounds

Title : Courage Under Fire

Year : 1996

Director : Edward Zwick

Cast as : Ilario

Movie Tagline : “In wartime, the first casualty is always truth”

Fact from IMDB : Matt Damon lost 40 pounds for his role in the movie.

4. Tom Hanks – Cast Away

Weight Loss : 40 pounds

Title : Cast Away

Year : 2000

Director : Robert Zemeckis

Cast as : Chuck Noland

Movie Tagline : “At the edge of the world, his journey begins”

Fact from IMDB : To make himself look like an average out of shape middle aged man Tom Hanks didn’t exercise and allowed himself to grow pudgy. Production was then halted for a year so he could lose fifty pounds and grow out his hair for his time spent on the deserted island.

5. Edward Norton – American History X

Weight Gain : 30 pounds.

Title : American History X

Year : 1998

Director : Tony Kaye

Cast as : Derek vinyard

Movie Tagline : “His father taught him to hate. His friends taught him rage. His enemies gave him hope”

Fact from IMDB : Edward Norton gained 30 pounds of muscle for his role. And also This film uses the word “f*ck” 205 times.

6. Charlize Theron – Monster

Weight Gain : 30 Pounds

Title : Monster

Year : 2003

Director : Patty Jenkis

Cast as : Aileen

Movie Tagline : “Based on a true story”

Fact from IMDB : Charlize Theron gained 30 pounds for herrole in the film.