Timothée Chalamet has stunned fans after making a surprise appearance at a lookalike contest for the actor.

The Wonka star crashed the event in New York City attracting a chorus of screaming fans.

Chalamet was seen posing for pictures with his curly-haired doppelgangers during a brief appearance at Washington Square Park.

The city's police moved on the crowded event which attracted hundreds of people - calling it "unscheduled".

Variety reported that Chalamet snuck his way through the crowd hiding behind a mask and baseball hat, before creeping up to two lookalikes who had been posing for photos, sparking shrieks across the park.

The contest, organised by YouTuber Anthony Po, promised a $50 (£39) prize for the winner and had attracted thousands of RSVPs to an online invite.

A fan of the Call Me by Your Name and Dune actor, Lauren Klas, described what made a good Chalamet. "It’s all in the nose," he told AP news agency.

“All of his bone structure, really.”

Contestants were also asked about their French language skills, plans to make the world a better place and romantic intentions with Kylie Jenner, who the star is rumoured to be dating, AP reported.

Eventually Miles Mitchell, 21, from Staten Island, was crowned winner dressed in a Willy Wonka outfit, before he tossed candy to the crowd from a briefcase.

Some attendees reported the event was shut down by police.

In a statement to the BBC, the New York Police Department said it responded to "an unscheduled demonstration at Washington Square Park" on Sunday.

It added that people were taken into custody and later released with a summons.

Earlier this month, a new trailer was released for A Complete Unknown which will see the star depict Bob Dylan.

The biopic is set in the 1960s and follows Dylan's rise to the top of the charts.

The film is set to be released in December in the US and in January in the UK.