Other mistake: In the opening song, the dolphins sing: "If we could just change one thing, we would all have learned to sing", however the subtitles on the DVD say "lungs to sing". As a side note, dolphins do indeed have lungs.
Continuity mistake: When Arthur breaks the arm of the chair as his brain is being taken, the arm is strapped to his wrist. A second later the strap and broken arm are gone.
Slartibartfast: Ever heard of a place... I think it's called Norway? That was one of mine. I got an award for it.
More trivia for The Hitchhiker's Guide to the Galaxy
Question: How did Marvin get the point of view gun to function the way it did (The front part popping open and firing a huge, wide-coverage blast)? That never occurred any other time the weapon was fired, and Marvin couldn't have known how to do it since they had recently discovered the gun.
Answer: Marvin does have a brain the size of a planet! He could have easily worked out the controls or directly interfaced with the weapon.
Sierra1 ★