It's Only A Movie

Workers stage a car accident on Michigan Avenue during the filming of the movie "Transformers 3" on Friday, July 16, 2010, in Chicago. Sections of Michigan Avenue, in the heart of the city's downtown, were closed over the weekend to accommodate the filmmakers.

A passerby looks on as workers stage a car accident on Michigan Avenue bridge during the filming of the movie "Transformers 3" Friday, July 16, 2010, in Chicago. Sections of the Magnificent Mile, in the heart of the city's downtown, were closed until Monday morning to accommodate the filmmakers who also staged skydiver stunts, fireballs, gunfire, and explosions.

Chicago police officers watch as workers stage a car accident along Michigan Avenue during the filming of director Michael Bay's new movie, "Transformers 3," on Friday, July 16, 2010, in Chicago.

A passerby looks on as workers stage a car accident on Michigan Avenue bridge during the filming of the movie "Transformers 3" Friday, July 16, 2010, in Chicago. Director Michael Bay started using a section of the famous Magnificent Mile to film the blockbuster Thursday.

A Chicago police officer moves a sandbag at a staged car accident on the Michigan Avenue bridge during the filming of the movie "Transformers 3" July 16, 2010, in Chicago.

Workers stage a car accident on Michigan Avenue during the filming of the movie "Transformers 3" on July 16, 2010, in Chicago.

Pedestrians cross the street as workers stage a car accident on Michigan Avenue during the filming of the movie "Transformers 3" Friday, July 16, 2010, in Chicago. Onlookers crowded around the area Friday afternoon with their cameras and cell phones held high above their heads, hoping to capture glimpses of the action or the film's stars, which include Shia LaBeouf.

Workers stage a car accident on Michigan Avenue during the filming of the movie "Transformers 3" on July 16, 2010, in Chicago.

Workers stage a car accident on Michigan Avenue during the filming of the movie "Transformers 3" on July 16, 2010, in Chicago. The famous Magnificent Mile was closed through Monday morning. This isn't the first time a film production or major event has caused the street to close. Talk show host Oprah Winfrey filmed an episode of her talk show there last year. And about 2 million people packed the street for a victory rally to celebrate the Chicago Blackhawks' Stanley Cup win earlier this year.

A Chicago Police squad car sits among the wreckage of a staged a car accident on Michigan Avenue during the filming of the blockbuster "Transformers 3" on July 16, 2010, in Chicago.

A Chicago police officer stands guard in front of a staged car accident on Michigan Avenue bridge during the filming of the movie "Transformers 3" on Friday, July 16, 2010, in Chicago. Sections of the famous street in the heart of the city's downtown were closed until Monday morning to accommodate the filmmakers.