Kit Harington, Saoirse Ronan, and Kate Mara are among the names now being thrown around to stretch or turn invisible in Fantastic Four. According to Variety, now Game of Thrones' Jon Snow and Skins actor Jack O'Connell are joining Miles Teller on the shortlist for unlikely actors testing to play a young Reed Richards--the pliable, elasticated hero better known as Mister Fantastic. Ronan and Mara are, naturally, said to be testing for Invisible Girl, while Chronicle's Michael B. Jordan still is the only name being thrown around for Human Torch. No actor has yet been linked to the role of The Thing. Anyone know any hot, young, up-and-coming rocks?