I think the "spirit" of the use is fine, as it's not like the workflow is scraping content off their info pages and publishing it elsewhere, or anything like that. It's just taking a publicly-available resource and using it to more easily jump to pages on their site. It's just like the user is searching from their home page, only now it's a reflex away instead of a dozen keystrokes.
If IMDB/Amazon objects, I will take it down, though.