Watching many movies, I realize that all of the dialogue is entirely devoted to explaining or furthering the plot, and no joy is taken in the style of language and idiom for its own sake. There is not a single line in "Pearl Harbor'' you would want to quote with anything but derision. Most conversations in most movies are deadly boring, which is why directors with no gift for dialogue depend so heavily on action and special effects. The characters in "Pulp Fiction'' are always talking, and always interesting, funny, scary or audacious. This movie would work as an audio book. Imagine having to listen to "The Mummy Returns.''
If the situations are inventive and original, so is the dialogue. A lot of movies these days use flat, functional speech: The characters say only enough to advance the plot. But the people in "Pulp Fiction" are in love with words for their own sake. The dialogue by Tarantino and Avary is off the wall sometimes, but that's the fun. It also means that the characters don't all sound the same: Travolta is laconic, Jackson is exact, Plummer and Roth are dopey lovey-doveys, Keitel uses the shorthand of the busy professional, Thurman learned how to be a moll by studying soap operas.