Colin and Greg Strause came to Hollywood to become visual effects artists. They did that — they’ve contributed VFX to a long list of movies including The Book of Eli, Avatar, 2012 and The Curious Case of Benjamin Button. They founded their own visual effects house, Hydraulx, in Santa Monica. And, in 2007, they directed AVPR: Alien vs. Predator — Requiem.The directing bug took; the brothers most recently directed and produced Skyline and have more projects on the way.