Use an apostrophe + S ('s) to show that one person/thing owns or is a member of something. ...
Use an apostrophe after the "s" at the end of a plural noun to show possession. ...
If a plural noun doesn't end in "s," add an apostrophe + "s" to create the possessive form.
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Question 1: When you are engaged in film criticism, you are analyzing the film's purpose.
Question 2: Reflector Boards can be used to change the direction of the light flows from a particular source of filming, particularly the sun when filming putside.
Question 3: The director's name is placed on a film slate.
Question 4: I believe it is 'Its intended audience'.
In this sentence it means that the mysteries had not been solved yet or that they had not been answered yet
The answer is a you welcome