There are plenty of them. I remember that when I was a kid in the 1960s, Famous Monsters of Filmland listed all the extant versions then. It filled an entire page.
Of course, that’s not the good versions. I think that in the 1932 Fredric March/Rouben Mamoulian version you have the very best one. I love the little camera and directorial tricks Mamoulian pulls, and this was pre-Hays, so they got away with a little more than the 1941 version did.
The 1920 version is memorable chiefly because Barrymore didn’t use any makeup in the Transformations. It’s interesting and well done, but not so great that it’s a Must See.
Of the other versions I’ve seen, the TV movie in the late 1960s or early 1970s with Jack Palance stands out as a pretty good one. I don’t think it’s available, though.
Two comedy versions are interesting for reasons other than the story. The original The Nutty Professor with Jerry Lewis has been overshadowed by the Eddie Murphy film of the same name (with Lewis, I’m surprised to learn, produced), but it doesn’t have the same feel. When it was originally released, the trailer said “You can reveal the beginning, and you can reveal the end, but don’t reveal the Surprise Middle!” It wasn’t just a trailer joke. The trailer showed a gruesome-looking transformation scene, but didn’t show the result. At the end of it all, Jerry Lewis turned into
A suave, cool, utterly unlike his spastic character lounge-singer type who had a thing for the ladies. Nobody missed the implication that Jerry Lewis’ “Mr. Hyde” was, for all intents and purposes, his ex-partner Dean Martin, who he’d broken up with a few years previously. I’m sure this contributed to their long separation.
The other was Jeckyll and Hyde – Together Again, with its lame 1980s sex and drugs jokes.* But the highlight of the film is the appearance of a pre-Elvira Cassandra Peterson as a busty OR nurse.
*The drug that turns Jeckyll into Hyde is pretty explicitly compared to cocaine, which is pretty interesting when you consider that many have suggested that the real cocaine influenced Stevenson in writing the original story (although he said it was all due to a nightmare). This theory may have influenced the making of this movie.
Actually, the very best version is the original story, which is a surprisingly good read. If you haven’t read it, I recommend it highly. If you can, get the Essential Dr. Jeckyll and Mr. Hyde, with copious footnotes by Leonard Wolf.