Helen Mirren was crowned best actress at Britain’s top theatre awards on Sunday for reprising her Oscar-winning portrayal of Queen Elizabeth, while a play about a boy with autism was the night’s top winner, taking home seven Olivier prizes.

Each time I (play her)I feel people arereally responding to the Queen... I feelI am rather coasting along on that love and respect – Helen Mirren

Mirren, 67, has won stellar reviews for starring in The Audience, Peter Morgan’s play about the private weekly meetings between the Queen and the 12 British prime ministers during the six decades of her reign.

Mirren is no stranger to royalty, having won an Academy Award, a Golden Globe and a Bafta, one of the UK’s most prestigious entertainment honours, for the same role in the 2006 film The Queen that was also written by Morgan.

The actress said the monarch deserved an Olivier, Britain’s equivalent of Broadway’s Tonys, after receiving an honorary Bafta this month for supporting the film and TV industry.

The Queen, 87, demonstrated her support for the film industry last year when she starred with actor Daniel Craig in a James Bond spoof at the opening of the London Olympic Games.

“Each time I (play her) I feel people are really responding to the Queen,” Mirren told reporters after accepting her award from Harry Potter actor Daniel Radcliffe at British theatre’s biggest night at London’s Royal Opera House.

“I feel I am rather coasting along on that love and respect,” added the actress, who had been nominated three times previously for best actress at the Olivier awards.

She beat Hattie Morahan in A Doll’s House, singer-turned-actress Billie Piper in The Effect and Kristin Scott Thomas in Old Times to take home the leading female honour.

Mirren’s co-star, Richard McCabe, won the award for best supporting actor for playing Prime Minister Harold Wilson.

But the biggest winner of the 37th Olivier awards was The Curious Incident of the Dog in the Night-Time that opened at the National Theatre in London in 2012 and transferred to London’s West End theatre district this year.

The play, based on Mark Haddon’s 2003 award-winning novel, won seven of the eight awards for which it was nominated, equalling a record set by Matilda the Musical in 2012.

It was named the best new play while Luke Treadaway won the best actor statuette for playing 15-year-old Christopher, a maths prodigy with autism who sets out to solve the mystery of who killed his neighbour’s dog.

He beat Rupert Everett in Judas Kiss, Mark Rylance in Twelfth Night, Rafe Spall in Constellations and James McAvoy in Macbeth for the top male prize.

“The book created such an amazing central character who people seem to relate to, even though he has behavioural problems and his way of viewing of the world,” Treadaway, 28, said on the red carpet before the glitzy ceremony.

Christopher’s mother in the play, actress Nicola Walker, won best supporting actress while the play also won awards for Marianne Elliott for best director as well as for lighting design, set design and sound design.

The prize for best new musical went to Top Hat, based on the 1935 film starring Fred Astaire and Ginger Rogers, which received seven nominations and took home three prizes. It also won a sound award and best costume design.

Composer Philip Glass’s opera Einstein on the Beach won the award for best new opera production, a five-hour event in which audiences were invited to enter and exit at their leisure.

The Royal Ballet’s production of Aeternum won the best new dance production award.

Winners of the main categories

Best new play: The Curious Incident of the Dog in the Night-Time
Best new musical: Top Hat
Best play revival: Long Day’s Journey into Night
Best actor: Luke Treadaway/The Curious Incident of the Dog in the Night-Time
Best actress: Helen Mirren/The Audience
Best supporting actor: Richard McCabe/The Audience
Best supporting actress: Nicola Walker/The Curious Incident of the Dog in the Night-Time
Best director: Marianne Elliott/The Curious Incident of the Dog in the Night-Time
Best actor in a musical: Michael Ball/Sweeney Todd
Best actress in a musical: Imelda Staunton/Sweeney Todd
Best entertainment and family: Goodnight Mister Tom
Best costume design: Jon Morrell/Top Hat
New dance production: Aeternum by the Royal Ballet
New opera production: Einstein on the Beach by Robert Wilson and Philip Glass
Outstanding achievement in opera: Bryan Hymel

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