The biopic is the vulgar but necessary tribute inherently populist cinema pays to more traditional, higher-brow art. Scholars and snobs might sneer at these films, and especially the way they love to transmute childhood trauma into creative drive, all in the service of a tidy narrative arc. But we secretly sort of love them too, especially when they’re a little tacky, and preferably accurate enough to offer the cinematic equivalent of a well-edited Wikipedia page or, for the more serious-minded, a scholarly biography. It helps if the subject, in addition to being admired and talented, if not sympathetic, had a dramatic and interesting life, like mentally imbalanced painter Vincent Van Gogh. Even better: a life we know very little about, like playwright and poet William Shakespeare, making plenty of room for fictional invention.

Given that the writer Franz Kafka (1883-1924) was not famous in his lifetime, it’s remarkable that we know as much about him as we do. Indeed, it’s a miraculous fluke that we know his work at all given that he instructed his friend and literary executor Max Brod to destroy all his writings and personal letters after he died. Luckily, Brod was, in some ways, the world’s worst literary executor — although he did risk his life at points to smuggle the work out of Czechoslovakia as he escaped Nazis to make his way to Palestine, as dramatized in Franz, Agnieszka Holland’s excellent new biopic.

In fact, as far as I can work out, this may be the only proper, life-spanning biopic made so far about Kafka, although there are several films that turn him into a character caught in a world much like his own absurdist, menacing fiction (see Steven Soderbergh’s 1991 exercise Kafka) or ones that memorialize a small slice of Kafka’s bio. (German directors Judith Kaufmann and Georg Maas’ The Glory of Life focuses on the last year of the writer’s life, for instance.)

Holland, whose last film Green Border was one of her best, seems to know conventional biopics are inherently cheesy, and risk being boring and shapeless if they plod chronologically through the subject’s life. Plus, she has to contend with the fact that Kafka’s life wasn’t especially eventful on the surface. He grew up in an affluent German-Jewish family in Prague; had a rocky relationship with his overbearing father Hermann, but a better one with his mother and sisters; worked in the legal department for an insurance company; got engaged but broke it off and never married; caught tuberculosis and died, aged 40.

His writing, to which he was devoted, was the most interesting thing about him, an intensely rich and motley life of the mind. Only his near contemporary, the American modernist poet Wallace Stevens (who survived into old age), who weirdly enough also was a lawyer for an insurance company, rivals Kafka in terms of the inverse proportion of literary originality and canonical significance to dullness of life story.

In order to surmount the challenges the raw facts present his biopic-makers, Holland, screenwriter Marek Epstein, editor Pavel Hrdlicka and the team have opted to create a ludic, kaleidoscopic montage film that flits like a fevered mind around the subject’s life and beyond, leaping decades with a single cut.

That said, the structure never feels random; there are obvious causal connections. For instance, we see young Franz (played as a child by Daniel Dongres) being “taught” to swim by his father (a superb Peter Kurth) by being chucked into a river after just a few lessons, compelled to sink or swim (he sinks). That scene is directly followed by flash-forwards to tourists in the present day admiring a riverbank spot where the adult Kafka would always rest after a swim. Similarly, a section that touches on how prolific a letter-writer the adult Franz was (now played by Idan Weiss, a dead ringer for the real Kafka but also a subtle, gifted performer) then cuts to a tour guide (Emma Smetana) at the Kafka museum pointing out that, in sheer weight, his personal papers are dwarfed by the mountain of wood pulp about him produced over the years.

Indeed, Holland takes a puckish delight — one that Kafka would probably have been equally amused by — in showing how this introverted, neurasthenic perfectionist has become an icon in modern-day Prague, with burger restaurants, statues, tours, tourist traps and all manner of tchotchkes pedaled in his name.

Nevertheless, the film strives to offer a rounded portrait of Franz that gets across his intellect, his sense of humor (there’s a great scene where he reads, smiling broadly throughout, passages from The Trial to a room of guffawing peers), and his complex emotional inner life. A fair amount of screen time is devoted to his tortured relationship with Felicie Bauer (a tender Carol Schuler), the Berlin-based relative of Brod’s to whom Kafka proposed. Not long before their engagement was to be officially announced, Franz became besotted with Felice’s best friend Grete Bloch (Gesa Schermuly) and started writing letters to her, an absurd romantic farrago that would seem farcical if it weren’t so very sad. The closest the film comes to a happy-ish ending is the limning of his later affair with married journalist Milena Jesenska (Jenovefa Bokova), a relationship that at least made him happy for a time.

Even with its two hour-plus running time, Franz feels dense but nimble, Tomasz Naumiuk’s cinematography often in motion, or static as the characters flow frenetically from room to room within the frame, especially in the Kafka family home. We come to appreciate why Franz would crave silence so as to be able to pursue his craft. Even so, the original score by Mary Komasa and Antoni Komasa Lazarkiewicz, supplemented by sadcore indie tracks by Trupa Trupa, is a presence throughout, acting like a sonic glue that holds the chronologically disparate sequences of the film together while adding a distinct modernity to the tone.

However, it will be newcomer Weiss’ intense, playful, sweet rendition of Kafka that people will remember this film for — a portrait of a complicated man who lived mostly in his head but was capable of tenderness with friends and lovers. Also, Franz doesn’t minimize the centrality of Kafka’s Jewish identity and Zionist beliefs, but neither does it pander in any way to any particular audience. The fact that almost none of his family survived the Holocaust is not neglected. But the film doesn’t dwell on that part of the story, all of which unfolds long after Franz’s death.

The tense near-final scene where Brod just escapes the scrutiny of a Gestapo officer on a train, with all of Kafka’s papers in his satchel, is all you really need to know about the rise of fascism that Kafka foretold in a way. Similarly to his writings, Franz the film is interested in a distilled, abstracted meditation on power, the law, control and desire that transcends the banal borders of realism.