A host of stars have attended the world premiere of the long-awaited film of The Hitchhiker's Guide to the Galaxy.
Zooey Deschanel, Stephen Fry, Martin Freeman and Billy Nighy attended the screening
The Office actor Martin Freeman, who plays the baffled Englishman in space Arthur Dent, was joined by co-stars including Bill Nighy and Sam Rockwell.
The film was adapted from the cult BBC Radio 4 series and novels by the late Douglas Adams.
His widow Jane Belson said of the London premiere: "He would go 'wow', he wouldn't believe it."
Adams died in 2001 at the age of 49, after suffering a heart attack.
Speaking at the premiere at London's Leicester Square, Ms Belson said she was initially nervous watching the film, but apart from "a few differences" felt it was true to the book.
"After a while, I thought, yes they have got it right and I relaxed and watched the movie," she said.
Freeman, who plays adventure hero Arthur Dent, said the film had been made with a lot of love.
"I suppose it's quite a British thing. It didn't feel like a big Hollywood film and I mean that in a good way," he said.
He said he hoped the humour travelled well to the US.
Stephen Fry, who provides the voice of The Guide in the galactic adventures, said the film kept to Adams' original intentions.
"It's a good story with fun and larks without sacrificing the point of it, " he said.
He added that fans from the official Hitchhiker's Guide to the Galaxy club had given him "all sorts of paraphernalia".
Adams became a household name when his radio series, The Hitchhiker's Guide to the Galaxy, evolved first into a cult science fiction novel and then a hit BBC TV series.
Adam's life was changed when the book version of The Hitchhiker's Guide to the Galaxy was published in 1979.
It went on to sell more than 14 million copies worldwide, and became the forerunner to a series which included The Restaurant At The End Of The Universe; Life, The Universe And Everything; So Long, And Thanks For All The Fish; Mostly Harmless and, posthumously, The Salmon of Doubt.
Adams had been working on the screenplay of The Hitchhiker's Guide to the Galaxy when he died.
The Hitchhiker's Guide to the Galaxy opens across the UK on 28 April and in the US a day later.
Other stars at the London premiere included Fran Healy from Travis, Monty Python's Terry Jones and designer Isabella Blow.