Claire Danes at NBC Studios for her appearance on 'Late Night with Conan O'Brien'. New York City, USA - 08.08.07

The teenager was thrilled when he received personalised greetings from Schwarzenegger, made possible by the actress' connections to the action man.

But Danes didn't realise that her actions would spark a huge interest in bar mitzvah messages from the Terminator.

She says, "He did this little video... which was very sweet. Then of course everyone was asking how to get a hold of Arnold's people to do it for their bar mitzvah."

Source: WENN