Big ones are important in movie making

I believe the answer is:

shots

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'big ones' is the definition.
The answer and definition can be both quantities as well as being plural nouns.
Maybe they are linked in a way I don't understand?

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for shots that I've seen before include "Gunfire -- attempts" , "See 2" .)

I've seen this clue in the Evening Standard.

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