The National Theatre's production of The Curious Incident of the Dog in the Night-Time, which won a record-equalling seven Olivier Awards last Sunday, has extended its booking period at the Apollo Theatre to 25 October 2014. It had previously been booking until 4 January. The Curious Incident of the Dog in the Night-Time received awards including Best New Play, Best Director for Marianne Elliott, Best Actor for Luke Treadaway, who plays Christopher Boone and Best Actress in a Supporting Role for Nicola Walker, who played Judy at the Cottesloe Theatre.

The play, which moved to the West End following a sell-out run at the NT Cottesloe last year, also recently won a Whatsonstage.com Award for Best New Play as well as the 2013 South Bank Sky Arts Award for Theatre.

Adapted by Simon Stephens from Mark Haddon's award-winning book, it follows 15 year-old Christopher Boone, a maths genius with behavioural problems.

As well as Treadaway the cast also includes Niamh Cusack as Christopher's teacher, Siobhan, Holly Aird (Judy), Matthew Barker (Ensemble), Sophie Duval (Mrs Shears), Seán Gleeson (Ed), Rhiannon Harper-Rafferty (Ensemble), Nick Sidi (Roger), Tilly Tremayne (Mrs Alexander), Howard Ward (Ensemble) and Johnny Gibbon as the alternate Christopher.

A 'Relaxed Performance' of The Curious Incident of the Dog in the Night-Time will take place on 22 June 2013 at 2.30pm.