At least one gunman opened fire in a packed movie theater during an opening night showing of "Godfather III," wounding four innocent patrons in an argument over loud talking.

Police said the shooting started at about 11:50 p.m. Tuesday, panicking a Christmas audience of about 700 who fled the Sunrise Cinema in the New York City suburb of Valley Stream.The wounded included two teenagers critically shot in the head and a young married couple with lesser injuries, said police spokesman Howard Grandjean.

The conflict began about 20 minutes into the screening of the newly released film when some patrons complained about loud talking among a group in the theater, Grandjean said.

"There was a verbal argument between two groups of males when shots rang out," he said.

The two groups ran from the theater with the rest of the fleeing patrons. There were no immediate arrests.

Detectives did not know how many people had fired shots but reported that all four hit "innocent bystanders," Grandjean said.

"None of them were in the groups that were arguing," Grandjean said.

Tremaine Hall, 15, was taken to a hospital with a head wound and was listed in critical condition. Turaine Baines, 17, was shot in the left eye and was hospitalized in critical condition.

Patrice Candelaria, 23, was in stable condition with a shoulder wound and her husband, Marco, 23, was wounded in the upper arm.