The plot was interesting; screen play maybe a B-, but in the end, the drama kind of fell apart abruptly. Of course, there was plenty of unrealistic plot devices (i.e. try smuggling a weapon into a baseball stadium). Plot disconnects, i.e. bad guys have cameras on the hero, everywhere he goes (I guarantee that NSA is good, and maybe other Intel agencies, but NO ONE has cameras at every door and window in America). It just seems that whenever the writers need to connect the hero to his pursuers, there was camera feed instantly available. It ain't that hard to get yourself "lost" in America if need be, even if you're just a high school kid.
Anyhow, it was a fun couple of hours, predictable past the first third of the movie, but there was some good stuff. For teenage and younger audiences, it's probably a hit. For adults, hmmm.... I can't remember that far back (high school puppy love, etc.) to identify with any part of the movie.