Christopher Nolan's blockbuster biopic "Oppenheimer" emerged as the big winner at the 81st Golden Globes, securing five awards, including the coveted Best Drama. In an unexpected upset, Yorgos Lanthimos' Frankenstein-inspired film "25741" triumphed over the highly anticipated "Barbie" in the Best Comedy or Musical category. Oppenheimer's Triumph: The awards season seemed poised for a Barbenheimer…