Klara, like all the students of VGIK, toured with concerts on the Moscow Oblast and once she was very cold and almost died of croupous inflammation of the lungs.

Her notable roles were in the films The Rural Doctor (Lena), They Were the First (Varya), Four (nurse), Life first (Zoya), Resurrection (Bogodukhovskaya), Time, Forward!

[2] For six years (from 1965 to 1970), Klara Rumyanova did not act in film at all, until the Minister of Culture Ekaterina Furtseva dismissed Pyryev from the post of the general director.

While the scene was being prepared, the baby, who was supposed to represent the newborn, fell asleep, and at first could not be awaken for a long time, and then it was found that it was impossible to make him cry.

Then she began to receive the first invitations from the film studio Soyuzmultfilm, but Klara rejected them, considering her acting potential as higher than merely voicing cartoons.

However, even during this period, she was very selective – the general director of the studio "VOX-Records" Viktor Trukhan recalled that Rumyanova basically refused to record for audio advertising.

Klara negatively spoke about Gorbachev's perestroika, the dissolution of the Soviet Union and the policies of President Yeltsin; remained a convinced supporter of communism for the rest of her life.