1. Characters breaking the 5th wall
    The 5th wall is making a rift in the space-time continuum)
  2. Open a movie with "in the year 2099, literally nothing has changed," and just continue the movie without ever addressing it.
  3. Road Trip/Roadside Service
    Characters begin their journey, but break down 100 miles in. They discover themselves while waiting for AAA or Uber (thus, dictating the movie's running time).
  4. RomNoms
    Any romantic comedy with characters working in the food industry.