This interesting and offbeat comedy excels thanks to lead Justin Long. The increasingly interesting actor is no stranger to tackling different types of film roles (how else can you follow up a nice supporting role in the very good Galaxy Quest with a lead in the pretty good horror film Jeepers Creepers?) and his astonishing role as Hal Nestor, a valedictorian who locks himself in the bathroom to work on a mathematical formula (he prefers that term instead of "equations") that somehow involves the cheerleader next door bouncing on a trampoline, is easily his best and most offbeat work yet. Most like Mos Def's characterization in 16 Blocks, Hal may come off as more than a little bit annoying, but Long understands his character, using his quirks and odd ticks as a catalyst rather than a means, making him more endearing than grating. There may not be so many guffaws as there is hearty chuckling, but the repeated attempts by Hal's mother to get him to get out of the bathroom. The film gets a bit deep in the last half, but the dramatics aren't overbearing, and it ends where it should (even though the credits hold something very funny). Chances are, if you somehow manage to find this enjoyable flick, you'll enjoy it immensely. Recommended.