‘Spencer’: Larrain and Stewart bestow a royal and unconventional biopic

“Spencer” (2021) – Diana Frances Spencer was born on July 1, 1961 in Norfolk, England, and – seemingly – every moment in her life was cast in a spotlight – the size of the London Eye – beginning on July 29, 1981.  On that date, she became Diana, Princess of Wales.  Yes, a wealth of her experiences are well-documented, but perhaps, not those moments behind palace walls.   Well, instead of steering into typical cinematic practices, director Pablo Larrain and screenwriter Steven Knight take a noticeably unconventional approach with their…