Mel Gibson has taken a much needed break from the movies. The Edge of Darkness is a decent one for him to come back to. Your basic invincible father avenging a murdered family member formula, this one done rather well. Danny Huston plays the same smarmy villain he played in Wolverine, while Ray Winstone plays an inscrutable intelligence agent (you know the guy is a high-ranking American spy due to his English accent).
Much like Liam Neeson's Taken, The Edge of Darkness is, well, darker, with a slightly less blood but 50% more conspiracy.