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• The plot does not revolve around the sun dying in the normal sense: this is not due for around five billion years based on our understanding of nuclear fusion. It has instead been "infected" with a "Q-ball" - a supersymmetric nucleus, left over from the big bang - that is disrupting the normal matter. This is a theoretical particle that scientists at CERN are currently trying to confirm, and was one of the many contributions of the science advisor. The film's bomb is meant to blast the Q-ball to its constituent parts which will then naturally decay, allowing the sun to return to normal.
• Dr Brian Cox, CERN / Manchester University, acted as the film's science advisor. His wife was involved in production of the movie's blog.
• In the original screenplay, the Icarus payload was the same size, but was made of highly compressed dark matter (there is no mention of needing fissile material) and had the same mass as the moon, so it had its own gravity (one-sixth the Earth's normal). The science advisor pointed out problems with using a bomb that massive, so it was reduced to the mass of Manhattan.
• 'Alex Garland' wrote the film as a "love letter" to psychologically-minded science-fiction, and also a film about atheism and "meeting God". He and director Danny Boyle differed in their interpretation of this aspect of this film, but found this did not affect the content of the movie. Garland remarks that they had reached "the same two interpretations that could be made from the world around us".
• The distinctive golden color of the space suits was intended to make them memorable to sci-fi fans.
• The password to activate the Stellar Bomb is "Sunshine".
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Character: Mace
