Although Twilight star Bronson Pelletier has denied he urinated on the carpet in LAX, footage has surfaced to prove otherwise.

The 25-year-old actor is first seen stumbling around the terminal ... then he unzips his pants and starts peeing until police detain him.

An onlooker is heard saying, "Oh, my God." Pelletier can also be heard crying and saying "it hurts" ... in regards to the handcuffs.

The Canadian star was kicked off his flight for causing a disturbance on board before the terminal incident.

Pelletier was arrested for public intoxication and urinating in public. He's due in court for his arraignment on January 7.

In addition to this court date, he will also appear before a judge on January 17 in connection with meth and cocaine possession charges stemming from his arrest last month at the Gym Bar in West Hollywood.