PHILADELPHIA — A man enraged by a noisy family sitting near him in a movie theater on Christmas night threw popcorn at the son and later shot the father in the arm, police charged.

James Joseph Cialella, 29, of Philadelphia first told the victim's family to be quiet, then threw popcorn at the man's son, police said. The victim told police that Cialella was walking toward his family when he stood up and was shot.

Detectives called to the theater in South Philadelphia found Cialella in the complex still carrying the weapon — a .380-caliber handgun — in his waistband, a police spokesman said.

"(It) is really scary that it gets to that level of violence from being too noisy during a movie," Lt. Frank Vanore said Friday.

The victim's name was not released, but Vanore said the 31-year-old man was in stable condition after the shooting.