Nicolas Cage's son has been taken hospital for a mental evaluation.

Weston Cage - Nicolas' son with former girlfriend Christina Fulton - was taken to a Beverly Hills medical facility by ambulance after an alleged altercation with his fitness trainer at Hollywood eatery The Framer's Kitchen yesterday afternoon (07.06.11).

The 20-year-old rock musician reportedly lost his cool when the trainer told him he couldn't order something off the menu and onlookers claim he "freaked out".

According to, police arrived at the restaurant and, after threatening Weston with a taser if he didn't obey orders, they were so worried about his behaviour they strapped him to a gurney before transporting him to Cedars-Sinai Medical Center.

He now may be subject to a 5150 psychiatric hold, which allows a qualified officer or clinician to involuntarily confine a person deemed to have a mental disorder that makes them a danger to himself or others.

According to other sources, Weston had an argument with his wife Nikki Williams - who he married in April - earlier in the morning, causing him to storm out of the Los Angeles house they share.

It is thought Nicolas has visited Weston in hospital.

In April, Nicolas, 47, was arrested for allegedly assaulting his wife Alice Kim during a public argument, although it has since been revealed he won't be prosecuted.