[Topic] The professor explains that a slice-of-life film is a film which uses a couple of techniques to create a more realist

M: Normally, movies rely on complex plots, dramatic action scenes, witty dialogues
  and attractive characters. But slice-of-life films are different. They deliberately
  present their stories as plain, realistic experiences.
  One of the main reasons we call them "slice-of-life" film is because they focus
  on a very short time period. Most two or three hour films actually cover a much
  longer period of time. You might see months or even years pass, with just
  important events highlighted. But a slice-of-life film is often shot in real-time, and
  it shows events exactly as they happen. For example, Night on Earth is a slice-of-
  life film. Or five slices of life, really-it’s made up of five continuous scenes that
  take place in taxis in different cities. In the New York scene, a passenger gets into
  a cab with a cab driver who doesn’t know how to drive the car. The passenger
  and cab driver switch places and have a conversation. They keep talking until
  they reach the passenger’s destination, and then the story ends.
  Another key characteristic of a slice-of-life film is the lack of production
  techniques. While the majority of films use background music, quick editing,
  and special effects to entertain audiences, slice-of-life movies are simpler. The
  German film Forest for the Trees is a good example of this. There is no special
  drama or action. No big conflict or conclusion. And the characters are normal,
  everyday people. One reviewer commented that watching the movie was like
  following someone around through the mundane moments of their life. What’s
  the point then? Well, it’s precisely because the movie seems so realistic that we
  deeply sympathize with the main character. He seems just like one of us.