Actor Mark Wahlberg has dropped about 27.5 kilograms for his new role in The Gambler.

The star slimmed down to just 61.2kg to play a literary professor with addiction issues in the new film.

"I started at 196 pounds (88.9kg) and got down to 135 (about 61.2kg)...'' Wahlberg has told People magazine.

"I began with a liquid diet. Then I completely changed my training program and gave up wine, bread and pasta. Now I'm eating small portions of protein throughout the day and jumping rope a lot.''

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The Gambler is set to hit cinemas in 2015.

Perhaps Wahlberg has his eyes on an Oscar nod - Matthew McConaughey just won gold for playing an emaciated AIDS victim in Dallas Buyers Club.

- WENN