Very colourful - like actors on the cinema screen? (6-4-4)

I believe the answer is:

larger-than-life

'very colourful' is the definition.
(larger-than-life means very vibrant or flamboyant)

I can't explain the remainder of the clue.

(Another definition for larger-than-life that I've seen is " Exaggerated".)

I've seen this clue in The Independent.

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