She had a brief comeback after the war with performances in the movies "Es kommt ein Tag" (1950), "Käpt'n Bay-Bay" (1952) and "Ein Leben für Do" (1954).
The actress Iwa Wanja conquered the big screen from the middle of the 20's and was able to took apart in some remarkable movies.
Besides her activity as an actress she also wrote some books and libretti.
Her last appearances in front of the camera before the end of World War II came in the 30's into being.