Braff, who makes his playwriting debut with the play - having penned, directed and starred in the 2004 film Garden State - also makes his London stage debut in the ten-week run at the Duke of York's Theatre.
Set in New Jersey getaway Long Beach Island in the dead of winter, All New People centres on Charlie (Braff), a heartbroken 35-year-old whose perfect escape is interrupted by a motley parade of misfits (played by Eve Myles, Susannah Fielding and Paul Hilton).
Among those spotted last night were: Linzi Stoppard, Edith Bowman, Kerry Ellis, Mathew Horne, Jeremy Hardy, Graham Norton, Mark Watson, Andi Osho, Lee Hurst, Nina Sosanya, Lara Pulver, Oliver Chris and Braff's beau Taylor Bagley.
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PHOTOS BY DAN WOOLLER FOR WHATSONSTAGE.COM.