Which post-theatrical distribution window typically generates the highest revenue margin (not total revenue) for major studio films?

In today's competitive film industry, theatrical box office is just one revenue source for major studio releases. The economics of film distribution have evolved dramatically in the digital era, creating complex pricing strategies across multiple viewing platforms. This trivia question explores a fascinating aspect of how studios maximize the customer lifetime value from their content across the theatrical-to-streaming pipeline.

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Premium Video-on-Demand (PVOD) during the first 3-6 weeks after theatrical
Subscription streaming services (Netflix, Disney+, etc.) during the exclusive window
International theatrical distribution in emerging markets
Physical media sales (Blu-ray, DVD, 4K UHD) during initial release