The thread's title explains itself.
For me, that movie is 2003's Anger Management.
I watched this with my family quite some time ago, so I don't remember the specific words of we used to describe the unfunny, boring, and overall lame trainwreck that was the first twenty minutes, but I remember it being so bad that we threw the DVD in the garbage once we realized the movie wasn't going to get any better. Typically, I like giving movies a chance to redeem themselves, but knowing how bad Adam Sandler's track-record is with quality entertaining I think we made the right choice in not continuing it.
Were there any movies you couldn't finish, KYM?