Research into Christian Bale and his methods of acting

DVD extras
Source 1
American Psycho - Before shooting American Psycho Bale went and hung out with people from wall street to get an idea of what they were like. Also to see the differences between life in the late 80's (around the time setting for American Psycho) and modern day life.

Source 2
The Machinist (Quotes from Christian Bale)
Christian Bale talking about his weight loss; 'It feels great, it feels like a kind of victory because i kinda just emaciated myself and destroyed myself you know, to the part where kinda just watching myself run is a joke because i just have no leg muscles or anything.'

Christian Bale talking about his acting in general; 'I admire immersion very much, but im not going to take it to stupid lengths, im not going to do it for the sake of it. Its only worth it if its for telling a really good story.'

These quotes will be helpful to my research as the quotes are directly from Christian Bale, it gives an insight into his methods of acting and the lengths he will go to for a film if he thinks its worth it. The quotes i have chosen from the dvd extras show Christian in the middle of his roles, so you see the persona he is currently imitating for his role. It shows him living the life of his character without been filmed. These quotes are a prime example of his methods of acting, even though they are only brief it is still apparent that he will go to extreme lengths to develop into the character he is playing.