We've obtained footage from the dinner, held Thursday at the Newport Beach Marina, and you see a helicopter swoop down just feet above the deck of a yacht, as Navy Seals jump from the chopper to the vessel, guns drawn!!!

The soldiers sweep through the yacht, as those onboard film with their cellphones, and the helicopter dashes up and down the Marina, at times circling the boat.

As for the event, it was held at Lido Marina Village, hosted by NOBU and Lido Marina Village.

Of course, those in the Marina who might not have been privy to the demonstration were probably dumbfounded ... you hear commotion from onlookers who clearly think this is some sort of raid.