San Francisco - Movie stars might be able to perform incredible car manoeuvres while talking on the phone and sending text messages. But in real life such actions will likely result in a nasty crash, and in California at least, a ticket and fine from the Highway Patrol.

California Governor Arnold Schwarzenegger, a former action movie star, has signed a new law banning text messaging while driving - making it only the sixth state in the US to institute such a ban.

The law came just weeks after a train crash in Los Angeles in which 25 people died, and where suspicions are that the driver ran a red light because he was sending text messages to railway enthusiasts.

"Banning electronic text messaging while driving will keep drivers' hands on the wheel and their eyes on the road, making our roadways a safer place for all Californians," said Schwarzenegger.

The law was passed by the legislature months ago, but Schwarzenegger delayed adding his signature as part of the battle over the long delayed state budget. The legislation follows California's ban on using a mobile phone while driving unless motorists use a hands-free device. That law went into effect July 1. The text-messaging ban will go into effect on January 1.

A violation of the law would result in a 20 dollar fine for a first offense and 50 dollars for each subsequent offense.