EXCLUSIVE: Cast rounds on horror for new UK sales outfit, to shoot this month.

Downton Abbey star Ed Speleers and Shauna Macdonald (Filth) have joined the cast of Paul Hyett’s upcoming horror Howl, which is being shopped in Cannes by fledgling UK sales outfit Metrodome International.

The creature horror, which begins shoot on May 27, tells the story of a midnight train which is attacked by a terrifying pack of werewolves, forcing a shy ticket inspector to unleash his inner beast to lead his passengers to safety and survive the night.

Metrodome has sold the film in Cannes to Shooting Stars for Middle East.

Director Hyett is known for his SFX work on The Woman in Black and The Descent.

Producers are Ed King and Martin Gentles for Starchild Pictures and executive produced by Lee Brazier (AV Pictures). Writers are Mark Huckerby and Nick Ostler.

Rising star Speleers has also locked roles in upcoming Disney sequel Through the Looking Glass and BBC TV adaptation Wolf Hall. He is currently shooting UK independent feature Remainder alongside Tom Sturridge, Cush Jumbo and Arsher Ali.