Which innovative supply chain practice did Marvel Studios implement during production of 'Avengers: Endgame' to prevent plot leaks while maintaining filming efficiency?

Every major film and television production relies on a complex supply chain to bring creative visions to life. From specialized camera equipment to custom-built sets, the logistics of entertainment production represent billions in annual spending. Test your knowledge about how the film and television industry manages its unique supply chain challenges that directly impact what appears on screen - and ultimately, box office success.

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Actors received digital scripts that would self-delete after 24 hours and were color-coded to track potential leaks
All props and costumes were manufactured on closed studio lots with no external vendors to eliminate supply chain visibility
Filming sequences were intentionally shot out of order with decoy scenes that never appeared in the final film
Production used blockchain technology to track all physical assets from creation through post-production disposal