I have seen some people complain the ending was too upbeat (while other people think the film was too dark).
While I do agree this was not a happy, cheerful film, I think the complaint comes more from comparing it too much to previous Superman films. Although considering in Superman the Movie, Lois dies, while in MoS, Superman always saves her, that might even not be entirely fair (even if Superman reverses time and saves Lois).
I have to say I loved, loved, loved the ending. Especially Lois and Clark's banter, even if it was short. It was definitely a way to make me want to see a sequel.
