Jamie Lloyd's production of Harold Pinter's Betrayal, starring Tom Hiddleston, is set to extend its West End run due to demand.Running at the Harold Pinter Theatre, and forming the final part of Lloyd's Pinter at the Pinter season, the play was scheduled to run until 1st June.Having held its opening night on 22nd March to rave reviews, including five stars from Mark Shenton on LondonTheatre.co.uk, the production will now run in London until 8th June, with tickets on sale here on Monday 25th...