A town centre car park is set shut as film crews arrive for a long-awaited ITV drama. Middle Street Car Park in Deal will be transformed into a film set as the cast and crews of Unforgotten arrive. Written by multi-award-winning screenwriter Chris Lang and produced by Mainstreet Pictures, filming for a sixth series has begun. The drama sees Sanjeev Bhaskar and Sinéad Keenan star in a gripping cold case as detectives working tirelessly to unravel long-held secrets. The show previously starred Nicola Walker but she left after series four. Middle Street car park is subsequently out of bounds from…