Dear John co-stars Amanda Seyfried and Channing Tatum may seem lovey dovey during interviews for their new flick, but when asked about the other star of a Nicholas Sparks novel-turned-movie, Miley Cyrus, Amanda is not so nice! "If The Last Song was coming out the same weekend as Dear John, we'd have to collaborate on some sort of sabotage mission," Amanda tells MTV. "I'd burn it," Channing adds. Uh oh! Miley haters on the loose!