Yes, there was quite a stir amongst the Reacher fan community when it was announced that Tom Cruise would play Reacher. Lots of protesting and disappointment that Lee Child approved the choice. I agree, I think Reacher's size is VERY integral to the part, and I don't see how they're going to work Tom Cruise's non-height successfully without significantly changing the storyline.
I have been unable to enjoy ANY Tom Cruise movie after his couch-jumping debacles on Oprah and Leno. It seemed contrived to me, and now every time I look at him, that's all I see - him jumping on couches like a monkey. It makes me wish we could just leave the Hollywood set alone, they do a much better job as actors when they and their lives are mysterious.