Great start! Here's some ideas I had...
Overall this is a great submission and is an example of the reason visit Newgrounds.
Here's what I think about it:
The title sequence is great. I love the style you use to depict the fighting scene. The way you hide the villian until the end of the sequence is perfect. I also like the subtle threat of rape that evokes more emotion for the protagonist.
As far as the movie itself, when you're introducing the main character he starts telling us who he is and why he's a cop. This is a weak opening. Later, you show the death of the father and the transfer of the quest to the son's sholders. This is a much more powerful way to tell a story. If you focus on *showing* the story, rather than *telling* it, the real brilliance in your work will come through.
I'm also having trouble understanding the correlation between the title-sequence and the movie itself. You could make a case that the cop is a 'valhalla knight' in the same way that the protagonist is in the opening sequence, but this case isn't made in the movie because all we see is the character driving around, getting in trouble at work and going home.
One final point: there is a lot of stereotyping in this piece, particularly with the boss character. While I especially liked how he looked pig-like in the shadows, there didn't seem to be much reason for him to be in the movie. He put some pressure on Tyler, but this isn't played out. The ominous "You bet your ass" seems to imply that something is about to happen, but we don't get either 1) a sense that it happened or 2) a sense that it had been averted somehow. My only explanation for this is that the movie is clearly not finished and so this could be dealt with later.
This is one of the better pieces I've viewed on Newgrounds, but more than being entertaining and beautiful it points to your latent talents which, when fully developed, will easily rival works like "Little Foot".
Good luck and keep drawing!