Brand New Ancients is a spoken word performance (review) by poet, singer and playwright Kate Tempest that won the Ted Hughes Award For New Poetry in 2012. Early this year, to coincide with a wider tour of the show, Kate Tempest and the Battersea Arts Centre produced three short films based on the performance. One. Two. Three (trigger warning, as this one is terrifying).
Cabaret's Don't Tell Momma performed by a young Judi Dench, or by Molly Ringwald, or Chris Moore, but what would she want with me?
The Sultan's Elephant. A 42-ton wooden elephant materialises on the streets of London, thanks to Royal de Luxe (previously). The BBC has lots of background, including video (obligatory YouTube link). More from TimeOut and The Guardian.
Theatre History is the Theatre Museum of London's vast online collection of ephemera, containing more than 1500 objects that record the history of the performing arts in Britain since the 1600s. There's lots of goodies, but don't miss the goldmine of fabulous photos, posters, and prints.