All the Presidents Men. I can see why its a classic, but every time I try to sit down and watch it, i wake up at the end with the typewriter going.

Slumdog Millionaire

Gladiator.

I guess I can convince myself by rewatching if it actually is good, but:

Cabin in the Woods.

Honestly, any of the Monty Python movies. I know people love them, and they have a few funny jokes. But man are they ever drab, I just can't get into them.

How about one that will actually piss people off: The Shawshank Redemption

Here are a few I could just never get into.

Brazil, Godfather, Fight Club, Wizard of Oz, and Gone With The Wind

"There Will be Blood" was one of the most drab, boring, washed out, and damn near unwatchable movies of all time, yet everyone claims it's a masterpiece. It's just a story of a man becoming richer than god, and going off the deep-end, culminating in a scene where his adopted kid tells him how much they hate him, and him murdering someone in a misguided fit of rage. None of the characters are relatable, redeeming or interesting. The script has like a grand total of 1000 words across the entire 2.5 hour run time, and none of it is particularly compelling. What a snooze fest.

Gone With The Wind