Kristen Stewart and Robert Pattinson won’t be starring in the big-screen adaptation of “Fifty Shades of Grey” if author E.L. James has anything to do with it. When asked during a UK fan event what she thought of the stars playing Christian and Ana, James said, “I think it would be too strange! It would just be . . . Ugh, weird!” though she did admit the novel was partly inspired by “Twilight.” James revealed she has “four people in mind” but is not allowed to discuss the movie, “which is a real shame.”