When Aaron Eckhart (Dark Knight) was first cast as the lead in Stuart Beattie's I, Frankenstein I was sort of skeptical about the whole project. The genre hybrid is based on the comic by Kevin Grevioux who co-created the Underworld franchise with Len Wiseman. I assume Lionsgate wants to recreate the genre bending action concept for themselves. Unlike Underworld, this world has all sorts of monsters from what I understand this movie will feature demons, zombies, gargoyles and Eckhart as a heroic take on the Frankenstein monster.
HeatVision reports some casting additions which include Yvonne Strahovski (Killer Elite, Chuck), Miranda Otto (The Two Towers, Return of The King) and Socratis Otto have joined the film. Bill Nighy is in talks to play the demon leader who is the main baddie. Nighy is no stranger to genre films starring in the Underworld trilogy, Dead Man's Chest, At World's End, Jack The Giant Killer, Total Recall, Deathly Hallows Part 1 and Shaun of The Dead.