Netflix Begins Production on Dan Brown The Secret of Secrets Series

Production is underway in Prague for Netflix’s untitled series adaptation of Dan Brown’s 2025 novel The Secret of Secrets, which features Morgan Spector as symbologist Robert Langdon and Rebecca Hall as scientist Katherine Solomon [1, 2]. The project, which landed at the streamer in May 2025 with a straight-to-series order, marks the latest attempt to capitalize on a franchise that has generated approximately $2.24 billion in global film revenue [1].

Expanding the Langdon Universe

The series is co-created by Dan Brown and Carlton Cuse, with Cuse serving as writer and showrunner [1, 2]. The narrative follows Langdon as he attempts to rescue a scientist and a manuscript containing discoveries that could alter humanity’s understanding of the mind [1, 3]. Netflix describes the show as a blend of "futuristic science with mystical lore," aiming to replicate the suspense that defined previous entries in the Langdon series [1, 2].

The casting of Spector and Hall follows a history of high-profile portrayals of the Langdon character. Tom Hanks starred in three films—The Da Vinci Code, Angels & Demons, and Inferno—which collectively established the character as a global phenomenon [2, 3]. In 2021, Ashley Zukerman played a younger version of the character in the one-season series The Lost Symbol [2, 3]. The new production features an ensemble cast including Cherry Jones, Corey Stoll, and Rob Delaney, signaling a significant investment in the property as Netflix looks to build on the established intellectual property [2].

Production and Market Context

While the film franchise saw massive commercial success, with The Da Vinci Code alone earning more than $800 million, the transition to episodic television has proven more variable [3]. The current production in Prague follows a straight-to-series order granted in May 2025, shortly before the novel’s September 9, 2025, publication date [1]. By pairing a high-budget, established literary brand with a showrunner known for serialized drama, Netflix is positioning the series to compete in the crowded thriller genre [1, 3].

What to watch

• Release Window: Netflix has not yet announced a premiere date, though production began in September [2].
• Promotional Rollout: The streamer has yet to release a trailer or specific footage, leaving the visual tone of the "futuristic science" elements currently unconfirmed [2].
• Franchise Performance: Monitoring how this adaptation performs relative to the 2021 The Lost Symbol series will indicate whether the Langdon brand retains its previous drawing power with streaming audiences.

The success of the series will depend on whether the adaptation can successfully translate the high-stakes puzzle-solving of the novels into a long-form format that satisfies both existing fans and new viewers. Whether the "futuristic science" pivot differentiates this entry from the previous film adaptations remains the primary uncertainty for the project's long-term viability.