Gender: Male Location: You'll never know. Stalker.
Limit, maybe, but I find it hard to concentrate while reading and sometimes accidentally skip character descriptions, which sucks, but the movies sort of help in that area. Weird, I know.
Edit: For example, I always pictured Luna with having blue hair. Don't ask why.
Gender: Male Location: You'll never know. Stalker.
My head... wanderes... when I read, so even though I read the descriptions, they don't sink in, and when I read the word Luna, my mind went to an anime character or something, thus Luna=Blue hair.
My imagination was in no way "limited" as you say, but some of Rowling's descriptions are very base and aspects of the film and casting hacve undoubtedly had an effect on the read. For example, I always imagined Lupin with glasses, a kind of tartan trilby hat, carrying his suitcase everywhere.
I still did when reading the last book, but the small characterisation, the small nuances of the character added by David Thwelis filled in the gaps in the pictures Rowling paints.
I guess it goes to show however, that the art production of the films is spot on.
My image of Snape and Voldemort has changed from my own interpretation to the movie version. I prefer my own imaginary Snape to a greasy haired Alan Rickman any day