Final Cut Express Effects- Split Screening

We think a useful thing to include in our video is the use of a split screen, I found a tutorial on YouTube that showed me how to do this properly:

Final Cut Express Effects- Black and White

For our video we have been thinking about using black and white, for either the narrative or performance, we think this will help the audience identify with what it going on a when in the storyline of the video. I looked on YouTube and found a tutorial that shows us how to make it black and white: