Possible Clues:

• After making a show, they may hand in their notice
• We review exactly what's needed in unusual circs
• People who get to see movies early
• Professional reviewers of the arts
• Review writers
• Reviewers
• They give films stars
• Signs of nerves, perhaps, after crime's cut by 50%; they'll no doubt find faults
• Pan producers?
• Judges found at play