There are a lot of bad movies out there. Even so, the filmmakers and actors behind those movies don't often admit they are that bad. For an actor or director to lambast their own movie might actually put them in legal jeopardy. That said, when a movie is bad enough, sometimes even the artists behind the films just can't hold their tongues. There are some big name actors who hated their own films: Ben Affleck, George Clooney, and Halle Berry to name a few. There are also directors who talked smack about their own movies, though they are usually more inclined to blame the movie studio for a flop.
Most of the time, when these Hollyweirdos speak out against their work, it's years later in a "tell-all" interview. But every once in a while the public gets lucky and the filmmakers and talent of a movie will go nuts with some crazy DVD commentary tracks. It takes some real guts to make fun of your own movie during the movie.
Here are some interviews where celebs bashed their worst movies publicly, and even better, some bizarre DVD commentary tracks where filmmakers just let loose on how awful things turned out. There are even a few writers who take pot shots at adaptations of their own creations. It's not really slander when it's your own art, right?