What I really liked about this movie is that it kind of ties everything together. It retreads the old plot lines of the first two seasons, but knowing the revelations to take place it puts everything in a different light. It also explores the intense cruelty and duality of Cavil. Additionally, some of the plot lines that were never quite clear, begin to make sense. (How did Leobin know so much about Kara? Where Valeri's actions intentional?) There are three issue that I can foresee someone having with this. The first being, that some might feel it being a retcon of the first two seasons to connects the events of the fourth. While this might be somewhat true, I don't think it takes anything away from them, and if you liked the fourth season it adds something significant to it. The second issue is that it is a retread. We already know exactly what happens to all these characters. But I don't think that the compelling part of this is what happens so much as why it happens, and what feelings and emotions are fueling the Cylons. The third is that there are basically no space battles to be seen here. There is a great opening sequence where we get a much more in depth look at the destruction of the colonies, but for a show called Battlestar Galatica we might expect some space jockey action.