Jack Lowden and his girlfriend Saoirse Ronan look loved-up while out on a dog walk

Jack Lowden heads out on a dog walk with girlfriend Saoirse Ronan

Saoirse Ronan Goes Back To 1940 To Film Steve McQueen's 'Blitz' in London

Blitz FIRST LOOK: Saoirse Ronan joins music legend Paul Weller for World War II film