[Grand Admiral Thrawn]

This was mentioned in the Mystery Science Theater 3000 episode guide, but even before I read it, I felt the same way so it counts:

Mitchell - Joe Don Baker and Linda Evans are in bed (That is disturbing enough) then Evans reaches for a bottle of baby oil, and proceeds to rub it all over Baker's back :barf:

Others include:

The Blair Witch Project - Count another vote for the ending. It was just too disturbing.

Seven - Towards the end, as Brad Pitt is backing from the box, there is a one frame still black & white shot of Gwyneth Paltrow's face that flashes on the screen.

Wild Things - Kevin Bacon turns around in the shower and... :barf:

Ringmaster - The fact that I actually paid to see this!