I have not seen the movie yet, but I want to. I'm actually afraid, though, because it looks like Hollywood destroying something wonderful.
I've been a Douglas Adams fan for nearly 20 years. Read all five Hitchhiker's books, heard the original BBC radio broadcasts, seen the BBC TV series, read the Dirk Gently books, played the Hitchhiker's video game by Infocom, played Starship Titanic, and even have the number 42 tattooed on my left arm.
I actually conversed with the late Douglas Adams about 10 years ago and asked him about the fifth book (Mostly Harmless) which sucked. He replied. Apparently he was very open to communication with fans of his work.
The Hitchhiker's series has somewhat shaped my philosophy about life. I'm pretty convinced that we evolved from the moronc, useless cast-offs from some distant world. There's too much stupidity in this world for us to have evolved from apes.
Interesting links if you like HHGTTG (in any form):
HHGTTG Infocom adventure
Douglas Adams website