Which term refers to an object that is critical to the characters in a film, but may be insignificant to the viewing audience?
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macguffin
noir

A MacGuffin is that object in a film which is critical to the characters, but carries insignificant meaning for the audience.

A MacGuffin, a term introduced and widely used by Alfred Hitchcock is some element which drives the plot. The audience is not very concerned with the specifics of it.

1.the hosts on two opposing mountains stood,  

2.thick as the foliage of the waving wood;  

3.between them an extensive valley lay,  

4.o'er which the gleaming armour pour'd the day,  

5.when from the camp of the philistine foes,

6. dreadful to view, a mighty warrior rose; in the dire deeds of bleeding battle skill'd,

the answer is b