Stars figure heavily in the new stage adaptation of Mary Poppins. But, at last night’s London premiere at the Prince Edward Theatre, the on-stage stars (of an astronomical nature) were matched in brightness by the off-stage stars. Amongst the celebrities in attendance were: Graham Norton, Barbara Windsor, David Furnish, Jonathan Pryce, Michael Ball, Michael Gambon, Jim Broadbent, Tamzin Outhwaite, Anneka Rice, Julie Walters and Victoria Wood (who’ll be appearing in Wood’s own musical adaptation of Acorn Antiques from next month) and Dawson’s Creek star Joshua Jackson (who makes his West End debut come February in A Life in the Theatre).