While george jacobs is mentioned in the play , his trial is not shown . how does his trial affect your interpretation of the film? what does it show about the character /courts

The lack of trial by the court implied that the court had little evidence regarding the issue.

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The inclusion of scenes regarding the actual trial of George Jacobs adds to the mood of the film. It makes it seem the courts are acting on hearsay with little concrete evidence.

Explanation:

In the movie version of The Crucible, George Jacobs appears in court and is hanged for witchcraft because of accusations from Ruth Putnam. This adds to the feeling that the courts are being harsh on the characters accused of witchcraft and that there is a dangerous sentiment in the town where simple accusations and rumors or suspicions can result in the death of community members. It created a sense of having to accuse someone else in order not to be accused of witchcraft yourself, and that the entire town was descending into paranoia and darkness.

why does the crew join ahab's quest without hesitation?

i may be wrong but i think your answer is flashback