Gary Oldman has revealed most 'The Dark Knight Rises' has been shot on high definition IMAX cameras.
However, the British actor - who reprises his role as Lt. Gordon in the new instalment of Christopher Nolan's 'Batman' franchise - admitted the high resolution cameras did cause some problems on set as all dialogue had to be re-recorded after shooting because they are so loud.
He explained: "[We used it] a fair bit actually. The IMAX camera, it's a strange thing. There's only so much film that you can put through the gate. You get two takes from a roll, I guess.
"The thing is, it's very loud. It's a very noisy piece of equipment and it's quite cumbersome, it's quite a large - you don't hold an IMAX camera, I mean you steadicam it. But of course you have to loop, you have to dub everything you do on the IMAX because you can't hear the dialogue."
He told Collider: "It's the last one, the third one in the trilogy. It's a great story. It's gonna be pretty epic."
'The Dark Knight Rises' is released in the UK on 20 July 2012.