Stars from the Sky Atlantic TV show, which returns to screens on 7 April, took to the red carpet including Sophie Turner, Iain Glen and Liam Cunningham.
The event was organised by Sky Creative's internal team and included a screening in the grand hall, as well as an after-party in the venue's crypt.
Caterer The Recipe developed a number of food and drink dishes to tie in with the theme of the show. On the seats as guests watched the screening were bags of blood-red popcorn, and as they entered the after-party they were served a blood orange and rum punch with pine needles, served from bubbling cauldrons.
Three new food dishes were developed for the occasion including an ox cheek stew with pearl onions and horseradish mash; a roasted sea trout on a bed of wilted bulls blood leaf with turnips cooked in scrumpy cider; and a wild nettle risotto with shaved berkswell and toasted seeds, using wild nettles that were foraged from Bedfords Park in Essex by The Recipe.
Oliver Smith from Guildhall's private events team, said: "Guildhall London were delighted to be chosen as the venue for the much anticipated press screening of Sky Atlantic's Game of Thrones season four premiere. Our medieval surroundings set the perfect ambience to a truly spectacular evening."
David Wolanski, creative director at The Recipe, added: "The Sky Creative team pulled it out of the bag again and it’s always brilliant working with them. A seamless press run and then 500 guests gliding smoothly through the black carpet into the screening and then down into the crypt for a fantastic party, all without a hitch."
Technology specialists Anna Valley was also chosen by Sky Creative to provide a full audiovisual for the event, including projection mapping. The company provided four projectors and a media server to map the front of the Guildhall and playback content as the VIPs arrived on the red carpet.
Anna Valley also supplied a D&B Line array system, which was used to provide an atmospheric soundtrack to the projection mapping, as well as a 32-foot projection screen to playback the premiere.
Richard Mackie, project manager at Anna Valley, said: "Mapping the Guildhall was a real creative challenge, and seeing it bathed in digital imagery from Game of Thrones, which I’m a personal fan of, was a great moment.
"What made this event particularly challenging was the fact it was the short amount of rig and the projection towers for the mapping where located in a public area."
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