As theaters remain mostly shuttered, there’s no better time to explore streaming platforms for old favorites and new discoveries. Netflix’s catalog of older releases and its growing volume of original programming both provide reliable sources of entertainment during these times. With new blockbusters continuing to shift their release dates, Netflix offers the chance to experience some of the peaks of the form, with all four entries of Steven Spielberg’s “Indiana Jones” franchise, the massively successful musical classic “West Side Story,” the hysterically violent “Total Recall” and international superstar Stephen Chow’s action-comedy “Kung Fu Hustle.”