That's kind of the problem with casting Cavill. You don't really want Lois Lane to be a dime but she kind of needs to be to catch Supes' eye, especially in a film like this in which they had such little time together. (To be fair to Adams, there was NOTHING to that role.)

If you want spunkier, Isla Fisher could have made more sense. I think you need a Natalie Portman or Jennifer Connelly type beauty (not that they aren't gorgeous but they can pull off being a reporter) but they're taken. Maybe Rosario Dawson (I'm still in love after Trance) but I doubt WB wanted to add a media/racist shit storm around a film that's tough enough to reboot.