The fourth act, which plays downstairs, begins a quarter of an hour before the explosion.

Here we have a real denial of a fundamental condition of the theater.

Or if we stick to recent products of the American stage, we may think of "On Trial," a play which perhaps comes nearest to a dramatic usurpation of the rights of the photoplay.
We see the court scene and as one witness after another begins to give his testimony the courtroom is replaced by the scenes of the actions about which the witness is to report.

Another clever play, "Between the Lines," ends the first act with a postman bringing three letters from the three children of the house.

The second, third, and fourth acts lead us to the three different homes from which the letters came and the action in the three places not only precedes the writing of the letters; but goes on at the same time.