Walt Disney’s beloved 1964 musical is coming to Penarth Pier Pavilion as a singalong, blending live action with animation as Mary Poppins arrives on Cherry Tree Lane to transform the buttoned-up Banks family. Julie Andrews won an Oscar for her practically perfect performance, matched by Dick Van Dyke’s chimney-sweep charm as Bert, as rooftop dance numbers and a ceiling-set tea party unfold. So bring your best singing voice for “Supercalifragilisticexpialidocious,” “Feed the Birds” and “A Spoonful of Sugar.”