This review is for the one disc version (the one with Christopher Lee in a red cape in front of the Photoshop clouds filter background.) The way Amazon mashes all different version reviews (VHS, 1 disc, 5 disc) together makes it hard to find version-specific reviews. The first inaccuracy is that the run time is stated to be 343 minutes. It is, in fact, right around 100 minutes. I gather that this is a severely edited take on what was a miniseries of half hour episodes. I think that you can get the entire series if you buy the 5-disc version. It costs more, but I wish I'd known of it before I purchased this one.
The negatives: There is some horrible rudimentary computer animation. The quality of some of the film clips is quite bad. They don't appear to want to pay some music rights, so they will show a clip and rather than the actual music from the film, you'll hear some generic track play. They show clips from trailers when they can't afford clips from the film. It jumps around through film history with no specific direction and ends in a way that made me feel like saying, "Oh wait... that's it?"
On the plus side: The great Christopher Lee is your narrator. We get interesting extras woven throughout, such as interviews with the children of classic stars. In one segment, courtesy of the delightful Sara Karloff, we see COLOR home movies from the Son of Frankenstein set. In another, outtakes from Abbot & Costello meet Frankenstein. Christopher Lee gives the viewer interesting & humorous anecdotes involving playing the Mummy. Also, you will probably be exposed to some films you were not aware of. Definitely worth a watch, but I'm going to watch the 5 disc version sooner or later.