Regular dynamic domain structures originate under the influence of an external variable magnetic field of amplitude higher than the static saturation field at a frequence δ 104 Hz in a ferrit-garnet film. Dynamic domains can be in the form of a system of concentric rings expanding from the centre with proper frequence δ 10 Hz. In our opinion it is a result of a self-organization process in the system of magnetic domains. This phenomenon we named "Leading centre in an anger state" of the multi-domain medium.