The fast development of media opened the borders of the contemporary opera world. However, not long ago the Slovak opera functioned without direct contacts with the foreign theatre trends. During the four decades after the Czechoslovak coup d´état of February 1948 (1949 – 1989) the repertoire of the Opera of The Slovak National Theatre (SNT) was enriched only by five staging of the three guest stage directors (N. S. Dombrovskij, K. Kahl, G. Lohse). The social and political change after November 1989 theoretically enabled the invitation of foreigners, but the directory of the theatre took advantage only rarely of this possibility. The article focuses on the staging of foreign stage directors who brought us – sometimes more, sometimes less valuable – information about European staging trends (G. Montavon, D. Kaegi, J. Nekvasil, P. Mikuláštik, G. Varnas). Among guest stage directors it is especially Peter Konwitschny and Mariusz Trelinski. Their work considerably changed the perception of the opera theatre in Slovakia as well as the evaluation criteria to be used in all following opera staging in the Slovak theatre environment. When taking into consideration the quality and quantity of the staging of guest directors in the total context of the Slovak opera theatre, invitations of inspirational foreign teams seems to be a way financially demanding but indispensable for the inner motivation and for the outer effectiveness of the national opera milieu. In this context, it seems that the following season of the Opera of the SNT will be marked by a radical withdrawal from the reached positions.