Eh, you didn't miss out on much then. The pacing in the movie is horrible, which is kind of understandable considering you simply can't cram 20 hours of storytelling into a 2.5h movie.
Also Gil's a bit of a joke in that route. He's nowhere near as good in any of the routes as he was in F/Z, but he's especially bad in UBW. It's pretty disappointing, but oh well. The first and third routes still manage things pretty well.
You do know the events that occur in all 3 routes, right?
It is amazing. Well, the third route is, but it more than makes up for any shortcomings from the first two routes. Definitely worth going through.
The first route is pretty terrible but that's intended, mainly because it's more of an introductive route, teaching you about the HG War and whatnot. The second one is much better but it's still introductory, only this time it's mostly to understand Shirou's mentality.
The third route is a full-on sequel to F/Z, and while the 'girl' is easily the worst of the 3 (Sakura is shit compared to Saber (route 1) and Rin (route 2)) and Shirou's personality takes a swan dive, the story is impeccable, if not downright better than F/Z's. For one, it's darker. Yes, darker. The route itself is also about 4 hours longer than the other 2.
If you don't feel like downloading it, just use this instead.
poor doggy D: