On 23rd & 24th July 2011 at the stunning Alexandra Palace, London, All Tomorrow's Parties will present the first UK I'll Be Your Mirror event, which will be curated by the mercurial Portishead (who headline both nights) and ATP. Acting as sister events to the world famous ATP Festivals which usually take place in holiday resorts, I'll Be Your Mirror is a new series of artist curated music, film and art events taking place in cities worldwide.

Today ATP are very pleased to announce the addition of two stunning new performances to the Sunday 24th line-up: the legendary Godspeed You! Black Emperor who only recently reformed for a string of rapturously received sold out shows, and also a special collaboration between graphic novelist Alan Moore (Watchmen, From Hell) and musicianStephen O'Malley (Sunn O))), KTL) who will respectively provide text and guitar for an expanded soundtracking of Harry Smith's 1962 animated alchemical film "Heaven & Earth Magic".

We confirmed confirm are the first of the films that will be screened in the cinema at the event. Heading the list we are excited to present the acclaimed Submarine which will be introduced by writer/director Richard Ayoade (Saturday 23rd) and we are also thrilled to invite Mark Cousins who will introduce his documentary feature The First Movie. Other films confirmed include The Treasures of Long Gone John and three films by John Minton - Field, Jock Scott and September, with a full schedule and more films to be confirmed shortly.

Portishead will headline both nights, with a different stunning supporting line-up joining them each day. Tickets will cost £59 per day with weekend tickets priced at £100. These are the only scheduled UK shows Portishead will play in 2011.

Here is the current schedule for each day with more to be confirmed for both the Saturday and Sunday line-ups....

Saturday 23rd July

PORTISHEAD
PJ HARVEY
DOOM
COMPANY FLOW (original line-up - first UK show in 10 years)
THE BOOKS
FACTORY FLOOR
BEAK>
DD/MM/YYYY
FOOT VILLAGE
& MORE TBC

Sunday 24th July

PORTISHEAD
GRINDERMAN
GODSPEED YOU! BLACK EMPEROR
SWANS
BEACH HOUSE
CARIBOU
ALAN MOORE + STEPHEN O' MALLEY
LIARS
THE TELESCOPES
THE PASSION OF JOAN OF ARC
ANIKA
S.C.U.M.
& MORE TBC