Madrid-born beauty Penelope Cruz has improved her body with muscles. The 30-year-old actress has grown an impressive pair of biceps after the tough fitness regime during the preparation for her role in her new picture “Sahara,” directed by Breck Eisner (Thought Crimes).

The beautifull brunette had to go through  lots of physical preparations to be able to make all those dangerous stunts as camel riding, fighting and jumping onto moving trains. Contactmusic.com quoted the beauty as saying:

"I have muscles for the first time in my life. I'm always looking at them in the mirror."

The movie is based on the Clive Cussler bestseller, showing the adventure story of National Underwater Marine Agency agent Dirk (McConaughey), who is trying to save the world from strange madness, which begun in Africa, caused by something polluting the water. In Sahara he meets neurologist Penelope Cruz.

The movie is scheduled to be released on April, 8.