PARK CITY, Utah — As one of a handful of films premiering at the 2025 Sundance Film Festival already having secured a distributor, Mark Anthony Green made his feature film directorial debut with “Opus.”

Earlier this year, I had the opportunity to attend the world premiere of Opus at the Sundance Film Festival. I arrived at the premiere over an hour early and still ended up halfway down a line that wrapped around the building. Opus was by far the most anticipated screening of the festival- and the biggest disappointment.

Opus has been released in cinemas today (March 14) and the feature film debut from director Mark Anthony Green has been leaving viewers on the edge of their seats

Ayo Adebiri, Juliette Lewis and Stephanie Suganami star in "Opus," a new thriller that held its premiere at Sundance Film Festival.

Psychological thriller Opus boasts an impressive cast, but is it based on a true story and what is the film about?