Lower than 10 minutes into 2025’s Sundance U.S. Dramatic Viewers Award winner Twinless, James Sweeney’s oddball imaginative and prescient feels hesitantly seductive. “Why is that this portrayal of grief so enthralling?,” it’s possible you’ll surprise (in roughly phrases) as Dylan O’Brien’s Roman attends a bereavement help group for twins. The identical is true when saddened strangers bawl in Roman’s face, shocked by his likeness to his lately deceased an identical twin brother Rocky (additionally performed by O’Brien in flashback sequences).