I watched it while doing the exer-cycle thing to the tune of 730 calories, which seemed not very much - considering how quickly the movie made me pedal - until I realized that the movie is only 86 minutes long. Compare that to the 700-calorie movies I watched before that were more like 120 minutes long. So, yeah, if you need a jolt of adrenaline, check it out. Don't expect to see an Academy-Award sort of film here; in fact, it might be best watched a bit tipsy. Or exer-cycling. But it's great heart-pumping fun!