A few years ago my friend Bruce & I saw Let Me In, the English-language remake of a superior (IMO) Swedish original. Both versions based on a great Swedish novel, Let The Right One In (a Smiths lyric reference, BTW). There's a scene where one of the main characters, a young boy, listens while his mother talks on the phone. You see the mom only as a totally blurred out shape while the camera focuses on various fore- & background objects. The idea is that she's an undefined, nebulous presence in the boy's life. Okay, got it. But the scene kept on going...then Bruce & I finally turned to each other and said almost in unison, "Canon 5D!" Then we started laughing. The effect was quite striking visually, but it took us right out of the film too.
-Dave-