While I'm reading this thread... I may as well comment on the movie.

I only watched Sunshine because I had heard so many bad thhings about it.

The science was pretty awful.

The sudden appearance of the "slasher" bit was more annoying than anything else. idav said that it was supposed to make me think. Maybe I missed something, but while it did make me think, it didn't make me think anything important or revealing, though. I won't touch it for its religious nature.

I agree with Ellix pointing out objections to some of the objections... but also point out that that objector (Antoniseb) also said he was going by synopsis and not by watching the film. It isn't really covered if the spacecraft was in free fall or not, so I think that can be chalked up to viewer decision.

But it wasn't the science in the movie that bothered me so much. I almost expect bad science in sci-fi. I wish it wasn't there, the public could use more education... but it's there anyway.

What bothered me was the psychology.
The astronauts were depicted as almost raving lunatics.
Some of the plot devices designed to keep the tension up between astronauts didn't even make any sense. And surely the captain would have handled that tension and not ignored it.
Many of them are depicted as extremely obsessive. They are also depicted, for the sake of the plot, as extremely mission oriented. Which although I can see where the writer was coming from, it just doesn't line up with actual human behavior, NASA screening or the very likely sanity levels of true astronauts.
These people were all crazy.
Even the on board psychologist ignored tension problems, took all the wrong approaches to a suicidal crewman and had this perverted fascination with self destructing by looking at the sun until his skin peeled.

Over-all, I would consider it "Horribly chosen Astronauts go psycho on Important Mission" more than anything else.
Then...
...after all the insane drama of watching supposed highly trained and sanity screened people trying to kill eachother...
You get this Really warped character thrown into the mix that has somehow
MAGICALLY
survived seven years alone on a defunct ship... (What did he EAT?- everything was shut down when the second crew boarded... Plus this guy was so baked from the Sun that he should have been a toasty pile of goo...) that makes everyone else look like Sigmund Freud. Not only did he sabotage the first mission... For some weird and unexplained reason, he went to extraordinary efforts staying alive and hanging out for seven years? For what? In case another mission just happened to swing by for a visit so he could sabotage them too? That whole part of the movie was just so wildly nonsensical as to make me want to throttle the writer.

If you think the science was bad, the psychology was ten times worse. It made no sense and was tied together with soggy spaghetti.

I could be entertained by the movie as long as I switched my brain off completely and zoned out... Dribble a bit of saliva off my slackened jaw and and fumble feebly for the remote but give up 2 seconds into the effort.