I probably shouldn't even comment on this movie because I lost interest in it quickly and wasn't paying much attention to it by the end, but here goes...In case you can't tell, I didn't really like this film. The acting was fine--you can't go wrong with Johnny Depp or Benecio Del Toro (I like saying "Benecio Del Toro", so I'll say it again, "Benecio Del Toro").
The movie was based off a book by Hunter S. Thompson. The book is supposed to be semi-autobiographical. Not that it really matters, I guess. There wasn't really much of a plot. The two main characters were in a drug-induced haze for the entire length of the movie (two hours). Not much else happened. If that's your idea of entertainment, you're going to love this film.