I consider myself a purist when it comes to vampires. Don't get me wrong. I appreciate a good bending of the rules when it serves a logical purpose. Take Blade. He's a vampire daywalker. Since the explanation was plausible in my warped mind, I can't see anyone else who's made a vampire in the traditional sense, roaming the country roads in daylight. As far as I'm concerned, an attempt at shaking up the genre has served to damage it. Recently, an article was brought to my attention of which I will post a portion of it with Jennifer Lynch's permission.
Now, I'm in total disagreement with her when it comes to one movie in particular. I enjoyed the movie UNDERWORLD. Though I must admit, Jennifer claims we let things go because Kate Beckinsale is super hot! And she's probably right, but I wouldn't place that movie in this particular list. Here's a portion of the article. Feel free to follow the link after you read what she has to say about UNDERWORLD. http://www.toponlinecolleges.com/blog/2011/9-vampire-movies-that-ruined-the-genre/ to read the full article.
9 Vampire Movies That Ruined the Genre