Actor Christian Bale had a tough time getting the voice of Batman for Batman Begins.
In 2005, Bale accepted the role and it took him a while to get it down, reports contactmusic.com. But for the latest movie The Dark Knight, it has got a lot easier for him. He said: "On the first film, it took me a while to really get accustomed to the voice but it's like riding a bike. For the second one, I could just switch on and off any time."