AceShowbiz - "Piranha 3-D" stars Kelly Brook and Jessica Szohr were given a shock during a road trip to Las Vegas when they were accosted by three police cars full of armed officers. The pair took a break from filming the fishy new horror movie to drive to Sin City for a fun-filled getaway, but British model/actress Brook got lost near the Hoover Dam in Ohio.

She realized there were three police cars following behind their vehicle, so she pulled over and asked the cops for directions - but she soon realized she had made a mistake when the officers jumped out of their cars and surrounded the pair with their guns drawn.

Brook tells the New York Daily News, "There (were) three police cars following us... In England, the natural reaction is to get out of the car and ask for directions, which is what I did... Next thing you know, we have got our hands on the bonnet (hood) of the car and we're trying to assure (the police) we're just actresses on our way to Vegas."

But the drama was soon over when the cops realized their mistake and the officers left with autographs from the pretty stars. Brook adds, "To have a gun pulled on you and then be asked for your autograph in the space of a minute is just a bizarre turn of events."