Researching Music Video's - HIM - Gone with the sin

This is the link to a song by HIM. The reason I looked at this video was because of colours effect and why the black and white works well with the rich and intense colours. e.g the pink sky or bright green grass.

http://www.youtube.com/watch?v=XZtFLd_wNfI

I have also managed to get some screen grabs of the video, which show how the colours work within the video. I am hoping to do a similar effect as this, in my video and it should be just a matter of adjusting some colours and settings.