The producers of I AM NUMBER FOUR made no bones about the demographic for their movie: this is, in essence, TWILIGHT aimed at teenage boys, who could identify with a high school loner character who turns out to be an alien refugee being hunted by some other aliens. The real question is whether the film manages to be successful in its own right.
For the first half, it's actually not bad. Alex Pettyfer, despite being obnoxiously pretty, is a much better lead than the depressing Kristen Stewart, and he carries the film pretty well. Timothy Olyphant (THE CRAZIES) lends some solid support as the father figure, and the whole high-school-reject type thing is quite watchable despite being overly familiar and clichéd.
Sadly, the film becomes more and more predictable as it goes on, and needless to say it all ends up in a noisy CGI action set-piece as do so many these days. Before then, though, it has promise despite the flaws. Such flaws include DJ Caruso's indifferent direction and the weak-ass villains, who look like rejects from BLADE 2. Fans of teenage fantasy/sci-fi flicks are sure to enjoy it, however.