Yeah, you are right, it seems to be much more of a movie problem than a book problem. The only physical descriptions in the books seem to be pointed nose, pointed ears and long fingers. No red flags there, so I stand corrected on my earlier post.
Still, the depictions in the movies are very clearly based on anti-semitic tropes, and you can read about how Rowling was consulted on very minor details in the production process. Make of that what you will. I don't think there was any negative motivation from anyone, so it's a question of whether the intent matters. It just seems a little funny to me, that those depictions ended up the movies.