If the new trailer from Jack the Giant Slayer wasn't enough for you, then feast your eyes on this new clip from director Bryan Singer's 3D action-adventure. This scene gives us a better look at the massive giants who Jack (Nicholas Hoult) must do battle with. Leading the pack is Fallon, a two-headed giant voiced by both Bill Nighy and John Kassir. Take a look at this clip to see how these giants make their way to the human land below.