When Steven Spielberg was shooting "Raiders of the Lost Ark," he was amazed Harrison Ford's stunt team survived. The first Indiana Jones movie remains a charming action adventure classic, but it took some dedicated stunt performers to pull off the hardcore action set pieces throughout, including star Harrison Ford. The leading man basically did all the stunts that didn't involve risking actual death, which meant he was thrust into the action when the worst that could happen was, y'know, a life-changing injury, horrible maiming, or perhaps the loss of a limb.

Case in point: The famous giant boulder chase scene, which involved Ford running in front of a 12-foot, 300-pound boulder made of fiberglass, wood, and plaster. Shooting this sequence required Ford to race the makeshift rock ten times, prompting Spielberg to remark years later, "He was lucky — and I was an idiot for letting him try it."

Now...