Chris Pratt has done the hard yards in the gym. Photo / Instagram

Chris Pratt has revealed that he was spurred into making dramatic lifestyle changes after being turned down for a movie role.

The actor says he took drastic measures and lost over 35 kgs after missing out on the role of Scott Hatteberg in the movie, Moneyball because he was 'too fat' says The Sun.

Refusing to take no for an answer Pratt set about transforming himself and was determined to shed the kilos at the gym as quickly as possible in order to get the part.

The 39-year-old said he worked out five days a week and made strict dietary choices - including cutting all booze and fries - in order to get in the shape required by the role.

"You can't have beer, hash browns, burgers, or anything fried. No carbs," he said. "And you have to work out five times a week."

"I'd check in maybe once a week and I'd say, 'They cast it yet?' and I would just keep working out," he says to The Mirror.

"Finally, I got in good enough shape that I took a picture of myself and sent it to my agent."

"If you cut the crap out of your diet and spend an hour a day doing something physical, you'll feel better mentally, physically and spiritually, because it's all tied together."

"Honestly, there's no trick or secret to it. It's about getting after it and being patient and consistent.

"And it's not about starving yourself, because you want to give your body proper nutrition.

"And think about who you want to be in six months or eight months or two years' time, whatever it is."

Pratt told Men's Health he initially lost 15kg in six weeks by running "five or six miles a day, eating leafy green salads and protein shakes and cutting out all alcohol".

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Chris Pratt's Back, Biceps and Abs workout

Warm up: Stretching & 10 mins jog on the treadmill
1. Pull Up — 5 (sets) — 15, 12, 10, 10, 8 (Reps)
2. Pull Downs — 5 — 15, 12, 10, 10, 8
3. Hammer Strength Row — 4- 12, 12, 10, 10
4. Heavy Dumbbell Row — 4 — 12, 10, 8, 8
5. Barbell Curl — 4 — 10, 8, 8, 6
6a. Hammer Curl — 3 — 12
6b. Reverse Curl — 3- 127. Plank — 3 — 20 secs
8. Hanging Leg Raise — 3 — 15
9. Sit Up — 3 — 20

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