The lead actor of the sports drama "Warrior" which debuts in theaters Friday, suffered serious injuries during the filming of the movie including broken bones, the movie's director said.

British actor Tom Hardy who stars the movie broke ribs, a finger [and] toes while Australian actor Joel Edgerton blew out his knee tearing his ACL (anterior cruciate ligament).

"It was intense", Gavin O'Connor, the director of the film told the site EOnline. "We were trying not to act. That was the goal."

The actors had to train seven days a week for eight weeks prior to filming. Training included jiu jitsu, boxing, muay thai and wrestling, according to actor Hardy.

5 ways to keep your bones healthy

Healthy lifestyle choices may help you to prevent bone loss and fractures. While falls are serious at any age, it's especialy worrying for older people.

-Get enough calcium and vitamin D each day. (1,000mg a day of Calcium for adults between 31 to 50 years old)

-Walk, climb stairs, lift weights, or dance each day.

-Mantain a healthy weight

-Reduce hazards in your home that could increase risk of falling and breaking bones

-Talk with your doctor about taking medicine to make your bones stronger.

Did you know?

Falls are a common reason for breaking bones. Sometimes you cannot prevent a fall but you can try to prevent breaking a bone by falling forwards or backwards (on your buttocks) because falling to the side may break your hip.

To prevent broken bones you can also use your hands or grab things around you to break a fall. Some people wear extra clothes to pad their hips or use special hip pads.