The title “Preparations to Be Together for an Unknown Period of Time” (Greenwich/Kino Lorber) suggests life during the pandemic, but this haunting love story — Hungary’s Oscar entry — follows a surgeon who leaves the United States and returns to Bucharest, where she plans to reunite with a physician she met and fell in love with during a medical conference. That he claims not to remember her when she shows up in Hungary is but the first twist in this riveting tale from director Lili Horvát. Also available: The acclaimed “Acasa, My Home” (Zeitgiest/Kino Lorber) follows a Romanian family forced into city life after generations spent living off the land; that’s no typo: