was accused of a campaign of terror and violence against his former girlfriend...the allegations include kicking, punching, choking, crushing and throwing her, and that's just the beginning.

Shane Black, who wrote "Lethal Weapon," "The Last Boy Scout," and "Kiss Kiss Bang Bang," has been sued by Sonya Popovich, who claims among many things, in 2006, a cocaine-fueled Shane put a gun in his mouth, threatened to blow his head off and then pointed it in her direction -- it discharged, hitting a wall.

She also claims he crushed and tried suffocating her during another incident during the same year. She says she was hospitalized for a hairline split in her esophagus that Shane allegedly inflicted. While in the hospital, Popovich alleges he visited her and on one occasion "crawled into [her] bed, removed a vial of cocaine from his pocket, sniffed some cocaine from the vial, and proceeded to * in Plaintiff's hospital bed."

In her lawsuit for assault, battery, and emotional distress filed yesterday in L.A. County Superior Court, Popovich is asking for more than $5 million.