The Brown Bunny (2003)
I had a colonoscopy once, and they let me watch it on TV. It was more entertaining than The Brown Bunny. It was the worst movie ever shown at Cannes and I was so bored during the screening, I started singing "Raindrops Keep Falling on My Head" out loud. I have not seen every film in the history of the festival, yet I feel my judgement will stand. The Brown Bunny offended audiences not because of sex, violence, or politics, but simply because of its awfulness. The Cannes audience was restless, many walked out of the screening, and the film was so unendurably boring that when the hero changes into a clean shirt, there [was] applause. Imagine long shots through a windshield as it collects bug splats.