The movie "Russian Ark" was shot without the camera being turned off. Directed by Alexander Sokurov, this film was shot in one shot without turning off the camera for more than 90 minutes. It is called one-shot. It is called uninterrupted shots made by a single camera. Since it is uninterrupted, the possibility of error is quite high. The longer the duration of the scene, the more likely it is to make mistakes, and the more difficult things get.