THE PRODUCERS (2005)
I saw "The Producers" with my friend Lyle who has narcolepsy. He slept through 87 minutes of the movie. I woke him up three times because he was snoring and once because he was drooling.
When it was over, I I asked him how it was and he said, "Good. I really liked it." I don't know how he knew the movie was good but I was impressed. If you can sleep through more than three-quarters of a movie and still have an opinion on it, then you know exactly how Hollywood works.
That is why "The Producers" is the must see movie of the year. But if you see it, I recommend sleeping through the first half because you are probably not missing much.