Movie Blu-rays and DVDs brim with superficially engaging extras that frequently fail to illuminate the main attraction. The opposite is true of Cry, the Beloved Country, which has been restored in 4K and newly released in StudioCanal’s Vintage Classics series of British films. The disc’s extras have been carefully chosen to contextualise Zoltán Korda’s potent 1951 drama as the first film to condemn apartheid.

Dark Noon, Pleasance at EICC ★★★★★

The Soweto-born dancer-choreographer Dada Masilo has made her name  telling classic European stories in African dialect. The last piece she toured in the UK was a striking Giselle in which the avenging Wilis were not undead brides but ancestral spirits led by a witch doctor. In his hand, instead of the traditional myrtle branch, symbol of chastity, he carried a fly whisk.

South African artist William Kentridge appears on video in his studio, twice. On the right he sits scribbling, waiting for an idea to surface. Meanwhile his alter ego stands impatiently by, trying to peek at his other half’s notes and, desperate for enlightenment, even reads a recipe out loud. The artist, it seems, doesn’t have a clue; he is as much in the dark as everyone else. A Lesson in Lethargy, 2010 offers a brief moment of humour in this relentlessly dark exhibition.

South-African cellist Abel Selaocoe is about to begin his third major concert in London in under a year. As the support artist for kora player Ballake Sissoko and cellist Vincent Segal at the Roundhouse in January, he received a lengthy ovation for his 30 minute set, having demonstrated an uncanny ability to play the audience as dexterously as he plays his cello.

The Voces8 Live from London, now in its seventh iteration, has progressed from streaming choral chamber music from an empty studio to an 80-strong visiting choir in a packed Christ Church, Spitalfields. In doing this the festival has retained its best features – a variety of repertoire, collaboration with a range of ensembles – while adding scale and the warmth of a live audience.

Figuratively, “Tselane” is Blk Jks’s “Stairway to Heaven.” Both songs begin quietly and move through passages of turbulence suggesting an impending tempest. Each has a command of dynamics which pulls the listener in, generating anticipation for what comes next. On stage, “Tselane” is introduced as a “lullaby.”

Musically – beyond them being a form of rock – little obviously connects “Tselane” and Led Zeppelin’s “Stairway to Heaven” but the association is there: it’s about the contrasts, the subtle union of drama and tranquillity.

Side Two of A Child’s Chant for a New Millennium opens with “Wrenbird,” a consideration of whether it’s possible to have a bird’s freedom of mobility. “Anywhere but here,” sings Wren Hinds. He may not be happy where he is, but the accompanying soundtrack is enough to make anyone stick around.

No actor had a classier time of it in the Eighties than William Hurt, who has died at the age of 71. Ramrod tall, blue-eyed and aquiline, with a high forehead swept clear of thin fair hair, he was a brash decade's intelligent male lead.

The energy of Antony Sher, who has died at the age of 72, was prodigious. He not only acted like a fizzing firecracker. He wrote books about his most celebrated roles, and several novels set in his native South Africa. He also wrote plays, and he painted. It was as if the stage could not contain him.