Answer:
The film adaptation of "The crucible" begins with the girls dancing in the woods. This is done with a double purpose:
<u>1. To set the atmosphere of the story.</u>
By starting with this scene (which in the orginal text takes place off stage) the viewer is placed on the theme of suspicious that is present all throughout the story, because we might believe that they are doing something off but we are not entirely certain about it. The theme of witchcraft is also established through this scene.
<u>2. To create a dramatic effect over the viewer. </u>
There is a clear impact on the viewer by starting the film with the girls dancing around, it makes the accusation that comes later much more real and it allows the viewer to place himself in the eyes of Parris, the one who sees the girls dancing.