* AlternateCharacterInterpretation:
** WordOfGod is that Mace has had a crush on Cassie for years. Is the tension between him and Capa at least partially due to the growing bond between him and Cassie?
** WordOfGod also reveals that Cassie aborted a pregnancy before the mission. So is her attitude more of a StepfordSmiler deal?
* BrokenBase:
** Some fans think it's an excellent movie overall, while some love the first half but hate the GenreShift when Pinbacker shows up.
** There are debates about whether Mace calling Capa out towards the end of the second act is a huge dick move or completely justified. Capa is of course bound to be feeling guilt about the fact that [[spoiler: he's caused certain death for all of them]] and it is almost needlessly cruel of Mace to remind him of that. On the other, Capa is ''entirely'' responsible for everything that went wrong and ended up nearly jeopardising the mission out of paranoia.
* CounterpartComparison: Pinbacker is reminiscent of Weir from ''Film/EventHorizon''. Both succumb to insanity, hunt the crews of doomed spaceships, believe they are carrying out the will of a higher being, and run around naked, bald, and disfigured (Pinbacker is horrifically burned, while Weir is covered in lacerations).
* CrowningMusicOfAwesome:
** John Murphy outdoes himself with an absolutely beautiful main theme, and various other great tracks.
** [[http://www.youtube.com/watch?v=NQXVzg2PiZw&feature=related Sunshine (Adagio in D Minor).]] Why yes. Yes you have heard this song [[RecycledTrailerMusic everywhere]] The fact it was remixed for ''Film/KickAss'' is testament to the original.
** [[Music/{{Underworld}} Underworld's]] uplifting ambient track "To Heal," is used to wonderful effect in the finale [[spoiler: when Capa comes face-to-face with the sun and dies knowing he has succeeded. On the soundtrack the song has rather fittingly been re-titled "Capa Meets The Sun."]]
* EnsembleDarkHorse: It's widely agreed that Creator/ChrisEvans walks away with this movie.
* HilariousInHindsight:
** ''[[http://xkcd.com/673/ Never fall back]].''
** Also, there was [[Series/DaAliGShow Ali G's]] poignant question to Buzz Aldrin, posed back in 2003:
-->"Do you think that mankind will ever land...on the ''sun''?"
** "Our purpose? To create a star within a star." Cue ''Film/{{Inception}}'', starring Creator/CillianMurphy, and its myriad of "X within an X" jokes...
** Hey, [[Film/CaptainAmericaTheFirstAvenger Captain America]]/Curtis from ''Film/{{Snowpiercer}}'' just [[spoiler:froze to death]].
** A forgotten 1990 film (directed by the legendary AlanSmithee) called ''Solar Crisis'' had a similar premise as ''Sunshine''.
* RetroactiveRecognition: In actual fact he's so hidden by make-up and freaky camerawork that you're unlikely to recognise him, but MarkStrong's name turning up in the closing credits has retroactively become a "Wait, what!?" moment. We do see of his video logs at the beginning though, out of the makeup.
* {{Tearjerker}}: Capa's FreakOut when it looks like all life on Earth might die because he ''tripped over a doorframe''.
* TheyWastedAPerfectlyGoodCharacter: A lot of character backstories as noted on the main page are very interesting but the movie doesn't touch on them. Cassie aborted a pregnancy right before the mission, Harvey is desperate to get home to his wife, Mace has a crush on Cassie and Kaneda had met Pinbacker personally. A lot of these details could have been expanded upon.
* UnintentionallyUnsympathetic:
** If one looks at the backstory for Trey, it makes him a little less sympathetic when it comes to messing up the recaculations. Basically it's a job that Icarus herself could do, but he does it personally because he's a ControlFreak who prefers to do everything himself. So he [[spoiler: got Kaneda killed and the oxygen garden destroyed]] because he didn't feel like trusting a machine.
** Harvey's backstory is that he misses his wife and just wants to get back home to her. That's never mentioned once in the film and he comes across like a DirtyCoward - never once explaining himself or apologising.
* VisualEffectsOfAwesome: The [[spoiler:detonation]] is a beautiful sight to behold. Also, the many shots of the Sun