After a couple of minutes of typical movie credits, there is a final, classic Guide entry. It refers to Arthur Dent carelessly speaking words about a towel, which ends up being interpreted by a pair of warring factions as a devastating insult. They then spend thousands of years coming to Earth bent on revenge, however "due to a terrible miscalculation of scale the entire battle fleet was accidentally swallowed by a small dog". The Guide concludes with the reassuring nugget of wisdom, "this sort of thing is going on all the time".
The film has effectively two title sequences. The first is part of the opening song, when the title appears out of a screenful of bubbles as the "So Long And Thanks For All The Fish" number gears up. The second is after the Vogon ships destroy the Earth and The Book is shown for the first time; as the original theme music of the radio show and miniseries plays, the book's spine rotates into view and reveals its, and the movie's, title.
"For Douglas" -- precedes the closing credits, after the final action sequence.