Colorado officials this week struggled to clarify rules about drive-in movie theaters even as many of the businesses have already opened to the public. Last weekend, drive-ins such as Fort Collins’ Holiday Twin, Montrose’s Star Drive-In, Delta’s Tru Vu and Buena Vista’s Comanche opened their gates with recent releases such as “Invisible Man,” Disney’s “Star Wars: The Rise of Skywalker” and Pixar’s “Onward” — all of which have already been streaming online for weeks. “Everybody’s been really good about cooperating and following social-distancing guidelines,” said Barb Groy, who co-owns Buena Vista’s Comanche with husband John.