Long Happy Life (1966)

On a bus filled with young people going for an outing to the theater, Victor (Kirill Lavrov), a scruffy geologist, and Lena (Inna Gulaya), a young factory worker, strike up a conversation. He has traveled to many interesting places, she is young, recently divorced, and has a child. When she invites him to join the group at the theater, he says that he's too grungy to go there. However, after he gets off the bus, he rushes around getting himself cleaned up, somehow manages to make it into the sold-out theater, and finds Lena...