Kirsten Dunst has refuted claims she will marry British rocker Johnny Borrell because she is “too young” to settle down. The Spider-Man actress, who turns 25 next week, believes she has “a lot to learn” about relationships, despite dating actor Jake Gyllenhaal for two years.

She says, “I don’t have anyone special in my life right now and, honestly, I’m not ready to get married.

“I think I have a lot to learn before I make such a huge life choice.”

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Kirsten Dunst may be keeping quiet on her budding romance with British singer Johnny Borrell, but it seems the Razorlight frontman is more than happy to spill the beans.

“I’m not hiding anything. We met in Los Angeles. We were hanging out at South by Southwest and we’ve been hanging out ever since,” the rocker, 26, told PEOPLE at an L.A. press event for Razorlight’s new single, “America.”

What’s it like dating someone in the public eye? “I don’t think there’s any rules behind it. If you fall you fall. In life that’s what you do,” he said. “You follow the things that you can’t resist and you go where you go. That’s falling in love.”

Walking the red carpet alone at Monday’s Spider-Man 3 premiere in London, Dunst, 24, avoided questions about her new beau, but did confess a weakness for British men, telling PEOPLE: “They’re very charming – the accent is cute!”

She and Borrell arrived together at the post-premiere party at central London’s Freemason’s Hall and headed straight for the VIP area. Hidden from prying eyes behind a floor-to-ceiling iron web, they chatted with Dunst’s mom and costars.

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Speaking of Spiderman….”Spider-Man 3″ will be the most expensive movie ever made when it opens May 4. While industry insiders claim Sony Pictures spent $350 million on production alone, Hollywood reporter Kim Masters reports in Radar magazine that the total bill - including prints and marketing costs - is more than $500 million, making the Tobey Maguire and Kirsten Dunst flick a record-breaker. One of the film’s producers, Laura Ziskin, disputed the $350 million number, and said, “I refuse to say the [real] number because it makes me choke. ‘Spider-Man 3′ was a super-expensive movie - the most expensive film we’ve ever made. But there’s no way you can get to $300 million.” A Sony rep claimed it only cost $270 million. The production spent more than $1 million a day shooting on location in union-heavy New York, and it also employed expensive computer-generated special effects.