ok, after watching the Leno interview, i must say she looks a lot better now that she's blonde.
BUT, is it just me or do the girl protagonists in the Spider-man movies all look older than Tobey? The actress who plays Betty, Kirsten Dunst, and now Bryce Howard don't look like they compliment Tobey well. Kirsten Dunst just wasn't hot enough in my opinion to be MJ. And Howard looks sorta M*lfish...like she's in her 30s or something. Or maybe it's just that haircut. They shoulda gone for the typical Gwen, straight hair with bangs look. Ah well, Tobey's got a kiddy face...what can you do.
The "would you like some chocolate cake" girl looks more similar to Peter Parker's age.
(On a similar note, I felt sorta the same way with Katie HOlmes as Rachael Dawes. She looked much younger than Christian Bale to play as his female love interest.)