These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Special Effects Failure: Computer-generated animation was still a relatively new technique in 1997, and many viewers felt that the CG— used not only for the transformation scenes, but for all shots of the werewolves— was too obvious in this movie.
Took The Bad Film Seriously: Julie Delpy. This review adds that her too-good-for-such-a-shlocky-movie performance "isn't necessarily a good thing, since it prevents us from relaxing and enjoying An American Werewolf in Paris as a completely mindless, campy entertainment experience."