LONDON (AP) – It's a storm in a Stormtrooper's helmet.

Lawyers for George Lucas' Lucasfilm Ltd. and a British prop designer faced off in London's High Court yesterday over rights to the moulded white Stormtrooper uniforms from the "Star Wars" films.

Standing alongside the bewigged, black-robed lawyers in court was the object of their dispute – a six-foot tall, helmeted warrior of the evil Galactic Empire. Lucasfilm attorney Michael Bloch called the menacing figure "one of the most iconic images in modern culture''.

Lucasfilm claims violation of copyright and trademarks by prop designer Andrew Ainsworth (pictured), who sculpted the Stormtrooper helmets for the first "Star Wars" movie in 1977. London-based Ainsworth sells replicas of the helmets and armor, which he says are made from the original moulds, on his website for up to £1,000 (US$2,000).

Lucasfilm won a US$20 million judgment against Ainsworth in a California court in 2006, and is seeking to have it enforced in Britain.

Ainsworth is countersuing, claiming the copyright rests with him and seeking a share of merchandising revenue from the six "Star Wars" films, which his lawyers estimate at £12 billion (US$24 billion).

Lucasfilm and its lawyers claim the design of the Stormtroopers was created by Lucas and his artistic team, and was already in place by the time Ainsworth was hired to create the helmets.

"The look to be created had been worked on by a large team of people for perhaps more than a year," Bloch said at the start of the 10-day hearing.

"We are not just talking here about the creation of a costume," he added. "It is part costume, part being."

Lifelike as they are, he said – in words to dismay many a "Star Wars" fan – the Stormtroopers are not real.

Bloch said there would be much talk during the case of helmets and armour. "There are no helmets; there is no armour," he said.

"There are no half-human, half-cloned warriors such as Stormtroopers. What we are dealing with are characters of the imagination. ... They are the stuff of fantasy."

They did not appear to be dream companions to the judge, Anthony Mann, who cast a glance at the silent Stormtrooper and a black-masked model of an imperial fighter pilot standing beside him.

"Are they going to stay there for the entire trial?" he asked.