I thought ST III was great. I had never seen Taxi
so that was my first time seeing Christopher Lloyd, and I thought he owned the role of Kruge.
And not only that, but John Larroquette
as a Klingon as well. How cool is that?
(One of my favorite bits in the whole film, actually, is when Kirk first finds out that David is dead and he just sort of staggers back against the command chair. I don't think I've ever seen Kirk more defeated than that.)