Where can I buy a "Soldier of Orange" Region 1 US DVD? via /r/movies

If this isn’t the correct sub-reedit, please point me in the right direction, but a long time ago, my father saw a film called “Soldier of Orange.” Since he was younger, he has always wanted to watch the film again, but could never find where to buy it. For the past several years, I’ve been trying to track down this movie for him, but could never find a Region 1 US DVD since, I guess, most of the “Soldier of Orange” DVDs are Region 2. So now, I’ve decided to take my task to reddit. Does anyone know where I can find this movie to purchase for a reasonable price?