The American title Crowley is a more informative title than the British Chemical Wedding.
Interesting film about Crowley possessing a professor. I think the film portrays Crowley more outrageous than he was in real life but the portrayal of Crowley's occult knowledge is probably correct. The addition of the science fiction theme places the film in a category where one debates occult power versus scientific knowledge (and power). The film is hard to follow at times but is well worth watching.