His resume may have only a few films on it but they are notable. The Usual Suspects and Apt Pupil are among his previous works. Singer managers to combine the very different genres extremely well. His direction is fairly straight forward, little in the way of 'arty' cuts and fades he presents the film without unnecessary distraction. He lights and frames each scene with great care and an understanding of just what makes a film work.
Singer is a true master of the craft of direction.
His stylistic approach to this film is far different from Usual Suspects but is every bit as well timed. Take a look at the interview with Charlie Rose in the Special Features section. Although a little short they give a good idea of this man's creative process. A young director, Singer has a lot going for him and a lot more excellent films in him. As with Usual Suspects, he brings to X-Men characters with moral conflict and deeper meaning then usual in the genre.