Video: Stunt car crashes into real police car on Transformers 3 set

They say they're robots in disguise, but obviously the entire Transformers 3 film set was a little too well disguised as a police officer driving a large SUV was en route to a call in Washington DC to investigate a suspicious package.

He somehow ended up in the middle of a car chase being filmed for next summer's blockbuster, and yellow Camaro 'Bumblebee' crashed into the side of him. The stunt driver was unhurt and the police officer later released from hospital without serious injury.

Click below to see what happened.