7. Getting the films to the theater
. Getting the films to the theater
Digital Cinema Package (DCP) is the format. It arrives one of two ways: physical shipment on a DCI-compliant CRU/hard drive, or electronic delivery via Aspera/Signiant to the theater's server. Multi-title season packages often ship as one combined drive (BFI FAN example). Venue rate sheets typically specify accepted formats and require DCI-compliant drives (Film Independent protocol).
The KDM is the part that breaks events. Encrypted DCPs need a Key Delivery Message issued to that specific projector's serial number, valid for a specific date-and-time window. To get one you must send the licensor the exact projector/server certificate and serial number and your precise screening window.
Non-negotiable KDM rules:
- Request the KDM at least 10–14 days out, and ask for a window that opens 48 hours before your event so you can test.
- Get the certificate from the venue's projectionist in writing. A wrong serial number means a black screen and no fix on the day.
- If your marathon runs past midnight, make sure the window covers the next calendar day too.
- Ask for an unencrypted DCP where the licensor allows it. It removes this entire failure mode.
Shipping: ask for the drive 7–10 days early. Ingest takes 20–60 minutes per feature, so the venue needs lead time. Return shipping is your cost and your obligation — keep the packaging and the prepaid label.
Test screening: insist on a paid technical check of every title — first frame, last frame, aspect ratio, audio format, subtitle track. Vintage catalogue DCPs vary wildly in quality and some are 4:3 or 1.66:1, which the projectionist needs to know in advance.
If no DCP exists for a Hammer title, ask about a 35mm print (requires a venue with working film projection and a qualified projectionist) or an approved Blu-ray/ProRes exception. Never assume a Blu-ray screening is licensed — it must be explicitly written into the contract.