Rebecca Rubin Film and Media ReporterPrior to the debut of Marvel’s “Shang-Chi and the Legend of the Ten Rings,” Disney CEO Bob Chapek called its old-school theatrical release an “interesting experiment.”The “experiment” in question: Would enough people show up to their local multiplex to see the latest Marvel movie to justify keeping the $200 million-budgeted film in theaters without an immediate backstop on Disney Plus? Overall ticket sales have been depressed in the pandemic, and the