Hunnam: 'Rim' was physical challenge

Charlie Hunnam found filming for 'Pacific Rim' like being on an "elliptical machine".

The 33-year-old actor - who plays Raleigh Becket in the science fiction film - admits he found it physically challenging when he was shooting scenes in the pilot chamber - which was created by director Guillermo del Toro - where he and his co-stars would navigate the robots.