When Levan Akin’s movie “And Then We Danced,” a romance between men in a Georgian folk-dance troupe, premiered at Cannes in 2019, it became a festival hit and later an Oscars submission. But when it screened in Georgia later that year, the movie’s combination of traditional Georgian culture and gay love sparked violent protests from conservative groups. Akin’s latest film, “Crossing,” which opens in U.S.