I read the book two, maybe three, times in the late sixties (on those occasions when I was able to read). Loved the story so much that I occasionally used Yossarian as my middle name (I don't have one).
I was pleasantly surprised when the movie came out and it didn't suck like most book adaptations do. Had a great cast and was true enough to the book. I haven't seen it in years, but I think I'll get the DVD and watch it again. Thanks for the reminder, NoCo.