No need to explain this one...its a movie adaptation of novel which needs no explanation at all!...
The plot - The story is about Arthur Dent, an Earthling, who finds himself in a bizarre of situation one day, when his home along with the Earth is blown away and he hitchhikes in an alien's spaceship. Thereby starts a mind boggling funny story...
Visual treatment - I loved the scenes...regardless of what others say, Garth Jennings has done a great job.
The scene where Slartibastfast takes Arthur into the factory workshop showing Earth Mark II is a visual treat!
The movie is full of exciting things, like this one -
Deep Thought has a logo for Apple Computer just to the right and above its electronic eye (which can be seen in closeups when Ford, Trillian and Zaphod are speaking to the computer). - Wikipedia
Apple logo was used to show Douglas Adams love for Macintosh.
A must watch!