Well, it's been four months since you uploaded this, so you deserve a comment: Pretty cool idea! I know of a good texture pack for this movie, it's Ghostbusters themed, but might not include Slimer (you should find a good texture pack-making guy to edit that), and make sure you state that you do not own anything related to Ghostbusters and that it is copyright of whoever made the film. Otherwise, the audio will get cut out or your YouTube account will probably get terminated. Be cautious!