When you put powerful images like these together with powerful music (like U2's "Sunday Bloody Sunday" -- lord I love this song), there's no doubt you'll get a powerful message for a video. Well done!!!
A constructive crticism, if I may:
There are a few too many different title treatments being used for my tastes. You use simple white text on black "chapter headings" for most of it, but then you use a different type of title (in just once instance) for "Jim Crow Laws" and another completely different one (the only title style that I thought didn't "work" in this) for "Rosa Parks" and "Sit-Ins."
Perhaps if you settled on just one or two types of titles -- for example, using the white on black titles for certain events, while using another type of title over the video images to point out certain key figures, like Parks (but you'd need to use it much more often for consistency).
Other than that, great job. Where did you get most of this footage? Internet?