You really can get lost in the action, as if you're really flying through the forest. If you allow yourself to believe what you see, you'll be amazed at the sensation. The tech is still not quite perfect, but it's definitely better than anything I've seen up until now. I don't know all the technical details, but the movie was shot at the standard 24 frames per second, which, combined with the strobing effects of the 3-D, makes movement a little weird at times. The movie itself was decent - it doesn't really provide anything unexpected or brilliant. But Avatar is not about the plot or characters, but rather the effects. With stunning visuals, and a story that does manage to stay reasonably interesting, they've definitely got a winner here.