I'll bet you no one outside of Canada or anyone else who watches "Being Erica" knows who Erin Karpluk is and most people will know Amy Adams from "Enchanted" which launched her career. Amy also has an Oscar nomination (and yes I know Erin has won Gemini Awards ) so I don't know how you can claim Amy doesn't have star power. If she didn't, she wouldn't be in the running for the role in the first place.
Look it's obvious you're against this film (you've already stated that it's going to bomb and have been critical of Synder which is all well and good) I just don't see how your points have any merit at all.
Christopher Reeve was a complete unknown when he was cast as Superman.
I am not sure why my points have to have merits at all? I am not against this movie perse, I just don't think they are making good decisions about this movie at all. Same feelings I had about X-3, S:R and Watchmen.