Catherine Zeta-Jones found shooting 'Rock of Ages' challenging.
The actress stars in the new movie based on the Broadway musical of the same name which is set during the 80s glam metal era and Catherine admitted she found the physical aspects of the role more difficult than what she made 'Chicago' 10 years ago.
She told buzzinefilm.com: "I have not danced since 'Chicago'- that was ten years ago. And I have had another baby since then. So it is always a challenge because it is not lot doing a regular movie. It is a different process. It is much harder work. It is more intense. It is angle, a shot, shot, shot. You just keep doing it until you cannot do it anymore. So it is always a challenge for everybody."
Catherine also loved working with Tom Cruise but is keeping the details of their scene together a secret.
She said: "I do a scene with Tom at the end of the movie. I am not going to give it away. You have to go see the movie. And it is a lot of fun. It kind of does a 360 on my character, which is really interesting. I play a very right-wing conservative bad girl, but not bad girl in the way of sex, drugs, and rock and roll.
"This is bad girl as boring, who wants to put an end to rock and roll. Take away the filth from the streets of Los Angeles. So she was a lot of fun to play."