The armed robbers escaped with the money after opening fire on security officers and a real-life police detective who happened to be on the set. Police said that blood found later in the abandoned getaway vehicle indicated that at least one of the robbers was also hit by gunfire.

The film’s star, Brenda Barstow, was inside a nearby trailer at the time of the shooting. She was unhurt and did not witness the real-life shoot-out.

The incident occurred outside a bungalow on Selma Avenue shortly before 10 a.m., according to police spokesmen. An armored truck arrived at the filming location to deliver $2 million scheduled to be used as a prop in scenes to be shot inside the house. The film set was described as being under heavy security at the time, though the exact number of armed security guards and police on hand was not disclosed.

The victim who was fatally shot was identified as Raymond Vaughn, 43, director of security for BankLA, the bank that was delivering the money to the film set. Also shot was Linus Simonson, 27, another BankLA employee. He suffered a bullet wound to the lower torso and was listed late Friday in stable condition at Cedars-Sinai Medical Center.

LAPD Detective Jack Dorsey said that as two guards were moving the cash from the armored truck into the house, three heavily armed men jumped from a van parked nearby, while a fourth waited behind the wheel. The gunmen confronted the guards and took the money. As the suspects were retreating to the van with the four satchels containing the cash, one of them opened fire.

“That was when all hell broke loose,” Dorsey said. “It turned into a firefight.”

It was unclear Friday why the shooting started. Witnesses told police that the robbers encountered no resistance from the security people on the scene.

“As far as we can tell, they just opened up and started firing,” said Detective Lawton Cross.

Police said several security guards returned fire, along with at least two off-duty patrol officers working as on-set security and a police detective, Harry Bosch, who had been inside a movie set trailer conducting a seemingly unrelated investigation.

Police yesterday estimated that more than a hundred gunshots were fired during the wild shoot-out.

Even so, the crossfire lasted no more than a minute, witnesses said. The robbers managed to get into the van and speed away. The van, riddled with bullet holes, was later found abandoned near the Sunset Boulevard entrance to the Hollywood Freeway. It was determined that it had been stolen from a movie studio equipment yard the night before.

“At this time we have no identities of the suspects,” Dorsey said. “We are following a variety of leads that we think will prove useful to the investigation.”

The shoot-out brought a sobering dose of reality to the encampment of moviemakers.

“At first I thought it was the prop guys just shooting blanks,” said Sean O’Malley, a production assistant on the film project. “I thought it was like a joke. Then I heard people screaming to get down and real bullets started hitting the house. I knew it was real. I hit the deck, man, and just prayed. It was scary.”