When the movie backfires, which it finally does, it's because too much grisly footage has been used too lightly.
– Janet Maslin,
New York Times,
5 Nov 2002
rotten:
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.
– Roger Ebert,
Chicago Sun-Times,
23 Oct 2004
rotten:
It's a failure, less because the odd stylistic mix doesn't take (it does from time to time, and to striking effect) than because Landis hasn't bothered to put his story into any kind of satisfying shape.
– Dave Kehr,
Chicago Reader,
23 Sep 2007
fresh:
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.
– Variety Staff,
Variety,
23 Sep 2007
fresh:
Not just gory but actually frightening, not just funny but clever, 'American Werewolf...' has its flaws, but these are outweighed by the film's many, mighty strengths.