Paramount has become the next studio to take a major step towards shortening the 90-day theatrical window, announcing during ViacomCBS’ investor day presentation that it will release two of its biggest upcoming blockbusters, “Mission: Impossible 7” and “A Quiet Place — Part II” for streaming on Paramount+ 45 days after they are released in theaters.When exactly those films arrive is still yet to be determined, as the COVID-19 pandemic has repeatedly pushed back the release slates of dozens of