Although Picking up the pieces Although damaged, the courthouse from the "Back to the Future" movies on the Universal Studios backlot still stands after Tuesday's fire. Police arrested a security guard Wednesday on suspicion of arson. The blaze came within several hundred yards of the Amblin Entertainment complex, a sprawling showpiece where Steven Spielberg, Robert Zemeckis and other directors work. As the fire spread, Spielberg and other filmmakers, made a dash through their offices in an effort to save scripts and other creations.