Quick chromakey Howto question

[speedbump]

Hi all.

I have a bunch of blue screen footage of two guys battling, and I'd like to convert the foreground into black sillhouettes. Can't quite figure out how to go about that in Premiere Pro.

Any suggestions appreciated!

[HansK]

Just a guess but how about by using a Difference Matte key?

[glassblowerscat]

If you just want the background to be the blue screen and the foreground to be silhouettes, then just do a reverse chroma key, or as suggested by Hans, a difference key.