This movie presented a radical melange of genuine horror and self-aware comic touches, not to mention the fabulous Rick Baker special effects.

A clever mixture of comedy and horror which succeeds in being both funny and scary, An American Werewolf in London possesses an overriding eagerness to please that prevents it from becoming off-putting, and special effects freaks get more than their money's worth.

Carnivorous lunar activities rarely come any more entertaining than this.

The transformation sequences on their own are disturbing enough to upset sensitive viewers (even though the first one doesn't occur until an hour into the 97 minute film, making the first two-thirds of the movie relatively tame, with the exception of a few appearances by Jack, who looks like a "walking meatloaf").

Seems curiously unfinished, as if director John Landis spent all his energy on spectacular set pieces and then didn't want to bother with things like transitions, character development, or an ending.