I never walk out of a movie for any reason. It could be Nazis in speedos pushing kittens into meat grinders and I wouldn't walk out. I'd hate the movie...and call it a POS, but I wouldn't walk out. I paid my money...I'm staying.
A Friend told me he walked out of Godzilla (98), but I didn't witness it.
And ahhhhhhh I liked Cool World. It wasn't a good movie, just more a guilty pleasure.