Gladiators and Werewolves, Staircase Madness, IMAX 3D News, Nightmare…

Every week, we round up the best tips that you post in io9's tips forum. We've got gladiators versus their most treacherous enemy: werewolves, Twilight gets improved, and we share what might be the best fight scene ever. Plus more! » 3/30/10 1:45pm 3/30/10 1:45pm