I was writing a film criticism book on Sergio Corbucci, the...

I was writing a film criticism book on Sergio Corbucci, the director who did the original Django. So, I was kind of getting immersed in his world. Towards the end of the Inglourious Basterds press tour I was in Japan. Spaghetti Westerns are really popular there, so I picked up a bunch of soundtracks and spent my day off listening to all these scores. And all of a sudden the opening scene [Django] just came to me.