Deleted scenes that make you cringe
 

In Fight Club, the narrator brings back the cart full of work stuff and Tyler reiterates "We got to kick it up a notch, fight club"
Narrater: "what?"
Tyler: "We have to kick it up a notch."
Tyler walks up the stairs and the Narrator stands look at him.

The deleted scences on the "Young Frankenstein" DVD are bad enough to be, well, straight out of a more recent Mel Brooks movie. I think this goes to show that Brooks didn't forget how to write, just how to edit.

Some of the deleted scenes in the Star Wars prequels were painful to endure. And the alternate ending to Final Destination was pretty bad(although it inspired a really cool test screening featurette on the DVD).

The octopus scene in Goonies was great to finally see it, but thank god it was not in the final cut. Also, the gas station scene was awful. In all honesty, most deleted scenes make me cringe. Although all the deleted scenes of Walking Tall should have been left in to make it longer.

The deleted scenes from Session 9 where definitely better laying on the cutting room floor than to be in this movie. This movie would have been pushed aside like several other movies if it had let them in. Just my .02

The marketplace fight with Carradine and Spawn on the Kill Bill Vol. 2 DVD. Cheesy sound effects, lame dialogue, and Carradine doesn't look learned and fearless...just old and ragged.

The biplane scene from Independence Day. Did they really think anybody would buy that, even in a popcorn movie like this?

The alternate ending of The Watcher in the Woods. Worst. Idea. Ever.

28 days later, had a confusing one.
I played it, it had background noise, no actors. The camera pulls back from street level to over top an overpass. And, there are cars going back and forth. I was thinking, holy smokes, there was a bunch of people still alive and they didn't know about it.
Then, play with commentary. "Here's a scene that we haven't edited out the cars from yet..."
You could have gave me a tip with the 'commentary off' scene.