Today's Berlin has a tough time living up to the reputation it gained from the film Cabaret. In the 1920s it was said that in Berlin, if you wanted to make a scandal in the theater, you had to have a mother committing incest with two sons; one wasn't enough. Political gaffes are now the prime comic material for Berlin's cabarets. Even if nightlife has toned down since the 1920s and '30s, the arts and the avant-garde still flourish. Detailed information about events is covered in the Berlin Programm, a monthly tourist guide to Berlin arts, museums, and theaters. The magazines Tip and Zitty, which appear every two weeks, provide full arts listings (in German), while the free (030) is the best source for club and music events. For listings in English, consult the monthly Ex-Berliner.