Having been snapped by the paps after arriving at Salt Lake City on Friday, Sienna joined co-star and director Steve Buscemi at the Prospector Theatre to talk about the film, in which she plays a famous but not very talented actress who meets and talks with a jaded war reporter.

For comparatively inexperienced but mega-famous Sienna, playing someone who revels in celebrity was a kick.

"It was really funny," she admits, "but it’s not how I feel about it at all."

Jude Law’s former squeeze is hoping being known just for her relationships is gradually fading away.

"The more work you do, that will start to change," she explains. "Things happened in a different way for me. But I love my work and that’s what most important."

As for Steve on fame? He’s a little more blunt: "I could take it or leave it."

Sienna Hearts Hartnett? - Jan 18 2007
It looks like Jude Law is definitely off this time - Hollywood rumours are flying that Sienna Miller is dating Josh Hartnett.

The two sexy young actors are recently single, after the 28-year-old split from long-time girlfriend Scarlett Johansson, blaming their hectic schedules.

The pair were spotted at The Chateau Marmont Hotel, where Josh held onto the British star’s thigh with his hand.

Reps for the 25-year-old actress and the actor deny there is any romance, insisting that "they were just hanging out" and that "there is nothing to comment on".

However, both were at the Weinstein Co Golden Globes on Monday night - although they arrived separately.

Sienna has also been linked with two of her Factory Girl co-stars, most notably Hayden Christensen.

The blonde has been getting a lot of buzz for her lead performance as Andy Warhol’s most famous muse opposite Guy Pearce, but the film missed out on awards glory because it was released too late for voters to consider it.

No romance with Leo, says Sienna - Jan 16 2007
At the Golden Globes, actress Sienna Miller was keen to dismiss press reports romantically linking her to actor Leonardo DiCaprio.

She told red carpet host Ryan Seacrest there was "absolutely no truth in it".

She added: "I haven’t seen him in a year and half, we’ve just been catching up, we’re buddies, old friends."

The actress, who wore a cream Marquessa dress and Cartier jewels, revealed she hadn’t wasted any time deciding what to wear.

"I looked at one dress, I’m a no-nonsense girl. Saw it, loved it, done!"

She corrected Seacrest when he said she was easy, saying: "That’s ambiguous in my country, I’m easy to please."

He then had to apologise for accidentally spitting on Sienna who went on to present an award.

The actress described the ceremony as a frightening experience.

"It’s lovely to be here and see people you know but the whole process is genuinely quite scary."

There was no danger of Sienna being without celebrity friends at the bash as she coyly revealed she was looking forward to hanging out with some A-list pals.