THERE was great surprise among the audience at the Watermill on Saturday as comedian Jason Manford turned up to see Barnum – and he was full of praise on social media. And he wasn’t the only celebrity spotted in the stalls that week. Jason posted later that same evening: “Have driven down to @watermill tonight to see Barnum. Amazing how they’ve turned this tiny stage into a full on circus! Brilliant performances & music.” The team at the Bagnor theatre were delighted to welcome Jason to the circus when he came to see their summer production – in the same week that musical theatre star Elaine P…