Not really, I think it's because they take such an advantage of the gaming medium, the stories would be too complex and long for a film, and the individual escapades would be too tedious for a TV show.
Although a B-Grade fantasy flick "Merlin and the Dragons" reminds me of the Markath area, and Conan of course.
It's not a movie, but the HBO series A Game of Thrones is supposed to be kinda like it, I think.
It's a way more brutal and gritty experience though. If you haven't seen it I highly reccomend it