Old Vic; Barbican; Park theatre, LondonPatsy Ferran and Bertie Carvel are delightfully word-perfect in Richard Jones's first-rate Shaw revival; Belarus Free Theatre fuse fairytale and reality; and two has-been actors hole up in a trailer in Adrian Edmondson and Nigel Planer's new comedy Eliza Doolittle rushes about on the steps of a Covent Garden church in the pouring rain: she has a wily look as she brandishes the f…
