Connor Carey’s review published on Letterboxd:
Spencer is one of the most haunting, draining and overall best movies of the year that's much more of a psychological horror film than the straight forward biopic you might be expecting. Shot in a very similar way to Jackie this has some absolutely striking cinematography and Jonny Greenwood's score is nothing short of exceptional. Pablo Larraín blurs the lines between fact & fiction really well and does a great job at putting you inside Diana's head. You really feel all the pain, emotional torture and horror she's experiencing and while it can be overwhelming at times, it makes it all the more effective and devastating. But the person worthy of the most praise is by far Kristen Stewart who deserves all the love she's been getting and completely disappears as Princess Diana.
Stewart delivers the most complex, layered and best performance of her career. Stewart has always been a great actress but she's on a whole other level here and I can't think of anyone who could've played Diana better or more beautifully. I know it's still early in the season but I seriously can't see anyone else winning the Oscar for Best Actress at this point, she's that good. Even though a lot of them don't have much to do, I really enjoyed the supporting cast as well, particularly Timothy Spall who has some really great moments. It might not be the easiest film to watch but it's without a doubt one of the best films 2021 has had to offer thus far and it didn't disappoint in the slightest. It's a big middle finger to the royal family and it has some of the best closing moments from any film this year. It's worth seeing for a lot of reasons but mostly for Stewart's transformative and stunning lead performance.