Mariinsky Ballet review " 20 minutes of ninja-kicking genius leads to a zombie apocalypse
Millennium Centre, CardiffValery Gergiev hares through Alexei Ratmansky's brain-fizzing dance of dejection before plunging into Sasha Waltz's ash-filled end of daysRussia's great ballet companies typically flog their classics around the world, but the Mariinsky brought five modern works to Cardiff, including three from the past decade. In the second programme, Valery Gergiev, the company's director and star conductor…