You might not have realised it, but yes, King Joffrey from Game of Thrones was in Batman Begins.
Not only that, so was Patrick's Day director Terry McMahon as one of the members of the League of Shadows. Every day's a school day, folks. As well as pointing out Irish actors, the Honest Trailer for Batman Begins also highlights the fact that Batman is actually sort of a criminal himself, correctly pointing out that just because a train killed Liam Neeson (spoiler) doesn't mean it's not manslaughter.
So, y'know, there's that.
Also, it points out the whole repetitive thing in the dialogue - which seemed clever at the time, but now just seems a little bit silly.