I'm not going to complain too heavily about Sunshine, because it was a free rental. But I wasn't thrilled with it.
Stylish, yes. Interesting spin on some potentially standard sci-fi subject matter, yes. But there were so many moments you had to suspend your disbelief even within this film's universe. I love sci-fi so it's no problem for me to accept that the entire premise of a ship flying into the sun to deliver a massive payload is plausable. But along the way, there are ridiculous plot devices that occur only to move Alex Garland's story forward.
Actually, let me qualify that "acceptance" statement. I can accept that we could develop such a ship and associated hardware. I cannot accept the idiotic idea that the end result -- an increased sun -- would benefit mankind. It would wipe out earth. That's part of nature's beauty -- any closer to the sun and we'd burn up... further away and we'd freeze. It's perfect. If the sun dies, it dies... and so do we.