Actor Armie Hammer and his friends attempted to stop a reckless speed racer on a busy California street by creating a blockade with their Vespas.

The Social Network star and his pals trapped a Ferrari driver who was racing at high speeds on Abbot Kinney street in Venice on Sunday (15Feb15), because he was creating a hazard for pedestrians and other cars, according to Tmz.com.

Hammer claims the man tried to sneak past the bikers, almost striking them with his vehicle.

The confrontation between Hammer and his friends and the Ferrarri driver escalated, and police were called to the scene.

Reports suggest officers were able to end the stand-off without citing either party with a traffic violation.