SXSW film festival: Jenna Ortega, Paul Rudd and Richard E Grant lead a wasted cast in this silly and exasperating mishmash of comedy and gore

The unicorn has been a staple of folk mythology for thousands of years, dating back to at least ancient Persia, with consistent characteristics: a horse-like figure with a single majestic horn, fundamentally elusive and untamable, possessing magical healing properties. But such a creature, recognizable from medieval art to My Little Pony, is one of the less familiar elements of Death of a Unicorn, the debut feature from writer-director Alex Scharfman that premiered at the SXSW film festival on Saturday. The film, produced by clout powerhouse A24, traffics in well-trod territory: the prestige eat-the-rich satire with a stacked cast and a beautiful backdrop. So well-trod, in fact, that it’s a relief when the mythical beasts do arrive – if only to reveal dubious CGI and a questionable commitment to the bit.

Silly as it may sound, Scharfman treats this unicorn bit with sincere seriousness, aiming for relevance on the rapacious state of late-stage capitalism satirized in such recent hits as The Menu, Triangle of Sadness, Knives Out: Glass Onion, Parasite and Succession, among others. I know this road, you know this road, even disaffected college student Ridley (Jenna Ortega) knows this road as she and her credulous father Elliot (Paul Rudd), a corporate lawyer, drive into the Canadian Rockies for a retreat with Elliot’s billionaire boss and his family. “Philanthropy is just reputation laundering for the oligarchy,” she retorts when her father tries to extol the largesse of the Leopolds, a clan of pharmaceutical executives loosely based on America’s Sackler family.