Todd Phillips' 'Joker' (2019) is a bold, standalone origin story that redefines comic book cinema. Set in the grimy, decaying Gotham City of the early 1980s, the film follows Arthur Fleck (Joaquin Phoenix), a mentally ill party clown and aspiring stand-up comedian struggling to survive. Ostracized by a cruel society and failed by the system, Arthur's fragile psyche fractures, leading him on a violent path of anarchy that births the iconic Batman antagonist.

Joaquin Phoenix delivers a tour-de-force, Oscar-winning performance, embodying Arthur's painful vulnerability and terrifying transformation with raw physicality and profound depth. His haunting portrayal is the film's devastating core. Phillips' direction crafts a tense, character-driven psychological thriller more akin to 'Taxi Driver' than a superhero blockbuster, with gritty cinematography and a haunting score by Hildur Guðnadóttir that mirrors Arthur's unraveling mind.

Viewers should watch 'Joker' for its uncompromising character study and social commentary. It's a chilling exploration of isolation, mental illness, and the societal neglect that can create a monster. Beyond Phoenix's mesmerizing performance, the film's ambiguous narrative and bleak atmosphere provoke deep discussion long after the credits roll. A masterclass in acting and a gripping, disturbing cinematic experience.