Well, he had to deal with the giant spider thing.
True. Although frankly, the giant spider ended up being a Thanagarian Snare Beast, which is pretty darn cool.
One question, Guard: don't you think your idea of the second movie in the trilogy has a little too much villains? I mean, it would be like TF2, a lot of robots and little screentime. I agree with the Luthor thing, and Kevin Spacey would be a great acting choice.
It's quite a few villains, yes. I think Metropolis, at some point, needs to be a metahuman battleground. I don't want to just manufacture disasters, I want to see disasters manufactured, if that makes any sense. I really would like there to be a reason for an SCU to exist by the third story, and metahuman tensions to be an issue as well.
Braniac is more of a presence throughout most of the story than an outright villain, though his motivations would be apparent and hopefully, evolving. I'm also toying with an idea that pseudo merges Braniac and The Eradicator in an arc that would carry over into a third story, without actually merging them into one character.
Bizarro, Metallo, and The Parasite are classics, and could carry a film each, I suppose, but I don't think they really should. John Corben would be an element that carried over from the first story, and I don't particularly like the nature of the Parasite in the comics...I think he works better as an alien force. Bizarro is...well, he's Bizarro. He's more important for how he affects Superman's approach to his mission than any inherently powerful character development.
I think it'd be better to see Braniac use them all as pawns of a sort, use them thematically make some statements about human VS machine thinking, to gauge Superman's power levels, and to drain him before any combat with him becomes necessary. Storywise, essentially they pose the initial physical threats to Superman, serve to make the public question his existence, etc.