GUIDE: How To Remove *ALL* Intro Logo's, Movies, and Slow Load Times - Warhammer Forums
In case you're paranoid about running that executable, I believe he does 2 things:
1) Remove video.myp
2) Change all instances of "BIKi" (0x42494B69) in data.myp to "<null><null><null>i" (0x00000069)
I made the change manually, and it works - I have no intro logos or movies now, which makes my game start faster at least.
People have been saying the executable works too, and he's reputable, so try it out if you'd like.