Final answer:
An Extreme Long Shot (ELS) or Long Shot (LS) is typically used at the beginning of a film sequence to establish the setting and character positions before closer shots are introduced.
Step-by-step explanation:
The shot usually placed at the beginning of a sequence, which establishes the general setting or the position of characters and objects, is an Extreme Long Shot (ELS) or a Long Shot (LS). This type of shot gives viewers a sense of location and the spatial relations among characters before the scene moves into a series of closer shots. In film production, these shots are crucial for setting the scene and providing context for the audience, so they understand where and in what circumstances the action is taking place. An ELS is particularly useful for showing landscapes or large settings, whereas an LS is often used to show characters in their environment, but with more details visible than in an ELS.