Raised in Glasgow as the son of noted modernist architect Isi Metzstein and Danielle Kahn, Saul Metzstein pursued architectural studies at Robinson College, Cambridge before transitioning into film, initially taking minor production roles on Danny Boyle’s Shallow Grave and Trainspotting as well as Gillies MacKinnon’s Small Faces. His breakthrough arrived with the 2001 feature Late Night Shopping,…