It's a trademark of Danny Boyle's films to show humans clinging to hope even in the worst possible circumstances---just think of the ending of Trainspotting and 28 Days Later.Sunshine follows a similar pattern, with seven astronauts and scientists attempting to reignite a dying sun by means of a stellar bomb, thereby saving the Earth. That this could mean their own deaths is something that probably weighs on their minds as much as on the viewer's.The film will also put one in mind of Alien, with the confining space of the ship and the intimacy of a small group. There's even a nod to Silent Running, with the greenhouse/oxygen garden on board.The film might have benefited by the inclusion of some bits of backstory on these people and maybe some transmission from their families back on Earth. Overall, however, it is an intriguing story.