I really excited about this film and i've been waiting fir several years ti watch this. While some may claim showing the scenes in reverse is just an annoying trick to make a simple plot confusing and add a plethora of twists, I wholeheartedly disagree. Any good story teller knows it's not what you say, but how you say it.

By playing the scenes in reverse you experience the confusion Lenny undergoes throughout the film. Showing some of the scenes in chronological order (BTW, the use of B&W instead of color to make the time distinction was ingenious) creates suspense which builds as the two time lines converge. The somewhat rushed pace (compared to a written format) doesn't give you enough time to adequately analyze the events during the movie. This has two advantages: firstly you're going to talk about it after you leave the theater adding to experience immensely, and secondly you don't have time to think about what has happened (will happen) so you're experience better follows that of Lenny.