Docuseries host and prop collector Dan Lanigan embarks on a road trip through cinema history, meeting stars and creators of such classics as 'Mary Poppins' and 'The Muppet Movie.' Movie blockbusters aren’t what they used to be, and that doesn’t just apply to recent months with theaters closed. (Streaming anything good lately?) A few decades ago, when studios poured $50 to $100 million into films such as “Who Framed Roger Rabbit,” “Tron,” or “Mary Poppins,” the silver screen lit up with story ideas and visuals never before seen. Today, such budgets are most often reserved for paint-by-number remakes and tiring...