I didn't watch the series until after the movie came out, so I saw them in order and got to watch all of the commentaries and features in the series box set, which I think prepared me for the movie in ways I would not have imagined. I think this led to me enjoying the movie less than I might have otherwise in that my expectations and wishes for the movie to be great were fairly high. I did enjoy the movie but think that some of the problems mentioned above were more glaring because of those expectations. I'd still recommend all of it, though.