After years of creating unhinged theatre together, Linus Karp and Joseph Martin – the real-life couple behind ‘Gwyneth Goes Skiing, Diana: The Untold and Untrue Story’ and’ The Fit Prince (Who Gets Switched On The Square In The Frosty Castle The Night Before [Insert Public Holiday Here])’ are getting hitched on the Pleasance Grand stage – marrying live during the Edinburgh Fringe. And everyone is invited. If you buy a ticket.