A collage? Link to an example of what you mean.
You have to be able to have more than one video track in your video editing program. What program are you using?
I don't really know what program i should use . Because i have none that special programs ... I'm broke can't really afford anything . But i think i got Sony Vegas ?
I'd like to do something similar. I have a mac, it has imovie but I don't think imovie can do "split screen". Any other software suggestions?