  We consider the problem of modeling of interaction of thin material films
with fields of quantum electrodynamics. Taking into account the basic
principles of quantum electrodynamics (locality, gauge invariance,
renormalizability) we construct a single model for Casimir-like phenomena
arising near the film boundary on distances much larger then Compton wavelength
of the electron. In this region contribution of Dirac fields fluctuations are
not essential and can be neglected. In the model the film is presented by a
singular background field concentrated on a 2-dimensional surface and
interacting with quantum electromagnetic field. All properties of the film
material are described by one dimensionless parameter. For two parallel plane
films the Casimir force appears to be non-universal and dependent on material
property. It can be both attractive and repulsive. In the model we study
scattering of electromagnetic wave on the plane film, an interaction of plane
film with point charge, homogeneously charged plane and straight line current.
Here, besides usual results of classical electrodynamics the model predicts
appearance of anomalous electromagnetic phenomena.
