one of my favorite films of all-time.
yes, get the leon: the professional international uncut version. its the best version out. there was an early pressing that had a defective 5.1 track, but that has since been fixed and finding that defective version is a task within itself. the superbit doesnt have the extra's, but it has higher video bitrate for a better picture and a dts track. the only problem with the superbit is that the bass on the dts track is lacking, a problem the international uncut version doesnt have (heh, and it doesnt even have dts, just the superb 5.1 track). so thats why i suggest the international uncut version. plus, it has all the scenes that were cut out from the states release when it came out under the title 'the professional'.
edit: in fact, the video on the superbit isnt even much of a step up from the international uncut version. usually if a movie is available in superbit and i want to add it to my collection, ill buy the superbit (i think i have around 6-7), but for this one, i passed.