I'm guessing this is going to contain spoilers for people who haven't beaten H2, but most of us have, so here goes.
This board is pretty much dead, so I figured why not bring the H2 goodness from the journals?
Bungie said the Human/Covenant war would end in Halo 2. With the civil war...
Star Wars - Episode III: Revenge of the Sith trailer.
I'll be the first to admit Episodes I and II sucked (except for Natalie Portman and the greatness that was Jango Fett's decapitation), but this trailer is pretty cool.
http://www.wayofthecommodore.com/trailers/episode3.mov