Joel Haas, Tom Kuljurgis, Robert Peters and Michael Zapf, collectively known as 4 Guys, 1 Brain, are a group of American brickfilmers. They are known for their two James Bond parodies, LEGOs Are Not Enough and You Only LEGO Twice, which are also their only two completed brickfilms. A third film in the series, Never Say LEGO Again, was teased but never released. In addition, Joel Haas contributed to the first Brickfilms.com community project, Cleaning Time, as a writing assistant.