Jennifer Aniston on The Bounty Hunter

In the film Aniston steps into the shoes of investigative journalist, who has jumped bail to go after a story and ends up on the run from her bounty hunting ex-hubby Milo Boyd, played by Butler.

Jennifer Aniston has opened up about her experience while filming her soon-to-be released action flick The Bounty Hunter.

In the film Aniston, 41, steps into the shoes of investigative journalist Nicole Hurley who has jumped bail to go after a story and ends up on the run from her bounty hunting ex-hubby Milo Boyd, played by Gerard Butler, 40.

The former Friends star has performed all her stunts herself and when asked how she ran wearing heels, she said: "I trained for years - trained, trained."

Talking about how her hair still looks stunning in the movie even after she falls in a pond, Aniston joked: "She's fallen in a pond I know, yeah - dried well."

"I was dumped into a trunk, I ran for miles and miles in four-inch Manolos, I got covered in pond scum, gun shots, car chases, crashes. It was so much fun," the Mirror quoted her, as saying.

Aniston added: "The toughest stunt, I would say the car chase, getting shot at, it wasn't hard, it was just a little scary."

Helmer Andy Tennant said: "There were a lot of bruises and she's handcuffed for half the film, and she had some serious black bruises on her wrists because she was very physical, because she didn''t want the fake ones, she needed the real ones, because she''s constantly trying to get out of them."

Aniston said: "It was terrible. No really, it hurt. It was painful, they really cut into my wrists."