When Dr Who (Matt Smith) asks the Curious Incident of the Dog in the Night Time's hero Christopher Boone (Luke Treadaway) to stop Moriarty (Andrew Scott) spreading a virus you know there is something special going on.

When Christopher is guided by supply teacher called Jude Law (yes that one), visits the Queen (Helen Mirren) and Q (Ben Whishaw) en route then you have something very special. Add in musical interludes by the likes of Bat For Lashes, some stand up by Simon Amstell and a special mystery guest that turned out to be Coldplay's Chris Martin and it is off the scale. No wonder more than £100,000 was raised for the National Autistic Society and Ambitious About Autism. But that doesn't even scratch the surface of the delightfulness of the gala, world premiere performance of A Curious Night At The Theatre.

This special one-off story was written by Curious author Mark Haddon and the play's adapter Simon Stephens (both who ended up on stage for a panel game of Mel Giedroyc devising - no this wasn't a dream, honest).

The writers created a series of connected sketches (most filmed on location and projected onto the wall at the back of the stage) which beautifully melded the fiction of Christopher's world while simultaneously smashing it with the reality hammer. There were frequent references to Luke Treadaway having a body unusually honed for a 15-year old boy, mentions of the Curious Incident 'shitting Oliviers and of course other work the actors have done.

It was all beautifully blended so that at one moment Q was explaining some maths to Christopher and then next telling him he could arrange a meeting with Moriarty because he'd been on stage with him in a Mike Bartlett play called Cock.

One or two key scenes from the Curious Incident were played out with a twist so that Jude Law got to have a go at Christopher's scene where he imagines he is in space and is carried about the stage to recreate the absence of gravity.

There were so many lovely moments throughout the evening -  Simon Amstell talking about his crush on Ben Whishaw, Chris Martin's trousers coming undone while he sang acoustic versions of his songs, banter between Martin and Jude Law about Robert Downey Jnr taking the lion share of any film fees (Chris Martin is married to Gwyneth Paltrow) - it would be impossible to mention them all.

Curious Night was a unique and special evening and one I'll always remember. And worth every penny.

For a fuller report of the evening head over to Poly's blog for her two-part review.

My review of Curious Incident of The Dog in the Night-Time in the West End from 2013.