A security guard dressed in a uniform contemporary to the Stalin era checks the site passes of writer Mikhail Idov (left) and director Ilia Khzhanovsky before they can enter the site where the film Dau is being. Like all the staff on the site the guard's role is blurred and he is expected to live in-character while on site. The vast site being used for the film was created by director Ilya Khrzhanovsky and is called The Institute. It has been made to look like 1950s Russia in keeping with the film which is about the life of the physicist Lev Landau. Within the set's compound all actors, staff and visitors are required to dress and behave in the manner of a Soviet-era totalitarian regime, giving the production, according to some reports, the feel of a sociological experiment.