Kevin Cate’s Viral Sci-Fi Short ‘Open Door’ Gets Adapted into Feature-Length Film Through Six-Figure Deal
Kevin Cate’s sci-fi short film “Open Door,” which amassed nearly 15 million views across YouTube Shorts, TikTok, and Instagram, is being developed into a feature-length film through a six-figure deal, according to multiple industry sources. The project follows the success of other YouTube-originated horror films like “Obsession” and “Backrooms,” which have drawn studio interest in creators with established online audiences.
The film’s development includes a spec script co-written by Cate and “IO” screenwriter Charles Spano. Sean Anthony Baker and Mia Matthews, who starred in the original three-minute short, are set to reprise their roles. An official statement described the story as “a surreal, genre-bending journey of Malcolm Powers,” with the original short depicting two individuals trapped on an elevator ride “from hell.”
Cate’s production company, Clinging Vine Films, is overseeing the project alongside executive producer Rick Kearney. The film’s budgeting process is expected to conclude by the end of the month, with fundraising and casting still in progress. Cate mentioned in a statement that the team has written “some of the most incredible roles” to elevate the project, emphasizing the need to “show the demand and find our village.”
A dedicated website for “Open Door” has launched, offering fans clues, theories, and behind-the-scenes content. The project’s development coincides with other YouTube creators, such as “Portrait of God” director Dylan Clark and “Mora” director Sam Evenson, securing film opportunities.
The film’s narrative details remain unspecified beyond the official description, but Cate has indicated the story will expand on the “surreal” elements of the original short. No release date or production timeline has been announced.
Industry analysts note that the project’s success will depend on maintaining the original short’s fanbase while attracting new viewers. The involvement of the original cast and crew, as well as the indie production team behind Cate’s upcoming film “Unbearable Christmas,” suggests a focus on continuity and creative control.
As the budgeting process nears completion, the next steps could include securing additional funding, finalizing casting decisions, and expanding the creative team. The project’s trajectory may also influence how studios approach similar YouTube-originated content in the future.
What Happens Next?
The film’s development is likely to proceed with a focus on maintaining the original short’s tone and audience engagement. Industry observers will track how the project balances creative ambitions with financial constraints.

Why This Matters
The adaptation highlights the growing influence of digital platforms in shaping Hollywood’s content strategies. By investing in creators with established online followings, studios aim to tap into audiences that traditional marketing may struggle to reach.
How to Follow the Story
Fans can track updates through Cate’s official website, which serves as a central hub for clues, theories, and behind-the-scenes developments. The project’s progress will also be monitored by industry analysts covering the intersection of digital content and traditional film production.
What is the budget for the “Open Door” film? The exact budget has not been disclosed, but the project is described as a six-figure development deal.
Who are the main cast members? Sean Anthony Baker and Mia Matthews are set to reprise their roles from the original short, though no additional casting details have been released.
When is the film expected to be released? No official release date has been announced, as the budgeting process is still underway.
What challenges might arise in translating a short-form digital concept into a feature-length film?