"Spiders... the spiders... they want me to tap-dance. And I don't want to tap-dance!"
Modern movie ad campaigns have several stages, and as a result produce several trailers. I find that the one that they pick to put on the DVDs are invariably the ones I like the least. To illustrate, I present the following two trailers, both of which were shown theatrically, but whose lamer cousins were instead chosen to be included, in the case of the former, a duller, more rock-oriented mess and in the case of the latter the "Year Three" version that stressed the connection to the franchise. These, however, are much more exciting. They're trailers, so they're perfectly work safe.
Spider-Man
Harry Potter and the Prisoner of Azkaban
Note the alternate version of "Double Trouble" in this clip; it is different from both the album recording and the film version.