Jake Gyllenhaal has promised nudity in his upcoming film.

The actor is so impressed with his new buff physique that he acquired for his role as Prince Dastan in 'Prince of Persia: The Sands of Time', and said his future projects would feature more bare flesh.

Jake said when speaking of his body: "I'm very proud. But if you think I'm naked in this movie, you should see the movie I did with Ed Zwick, 'Love and Other Drugs.' You'll just have to come back for that one."

The 'Brokeback Mountain' sex symbol got in shape by doing acrobatics, as well as horse riding.

Jake told OK! magazine: "When it was time to shoot there were daily workouts and I'd run back from the set to the hotel when we were in Morocco."

His hunky body must have been one of the reasons Gemma Arterton was so excited about getting to kiss the Oscar nominated star - which flattered modest Jake.

He said: "Of course it's a compliment. In the end it's just about chemistry."