I completely disagree with many of these bad reviews. My personal opinion: if you smoke, definitely see this movie. But not while you're stoned--it will make you paranoid about everything! If you have never smoked pot, or are against it, don't even bother. Honestly, the whole movie is kind of like an inside joke. If you don't get high or haven't gotten high, you won't think it's entertaining, and you probably won't get it. But this is precisely what I love about this movie: it probably portrays being high more accurately than any other stoner movie I have ever seen. I didn't like the ending and it did confuse me a bit as to what message it was trying to get across, but as for the rest of the movie, I thought it was genius. The thought process was incredibly accurate, the physical effects, everything. Being a smoker myself, the whole movie was incredibly stressful, and I understood exactly what the main character felt. So all in all, my recommendation is this: if you smoke, go see it. If you don't, you're not going to like it.