What is Unknown Quantity working on?

Unknown Quantity has 2 productions listed on Production List, 2 of them active, including White Knight, Castle.

Unknown Quantity

Sony Pictures Studios, 10202 W. Washington Blvd., Culver …

Unknown Quantity is a company with 2 productions listed on Production List, most recently White Knight (in development) and Castle (in development). Production List last updated this listing on September 24, 2026.

Is this your company? Claim your listing to keep its details current and get featured. Claim this listing — it's free →

2 Projects0 StaffUpdated Sep 24, 2026

Projects are productions on Production List linked to Unknown Quantity; staff are people linked to it.

Featured companies

Industry directory

Starstruck talent group LLCFeatured company

LaCoruna ProductionsFeatured company Your company hereFeatured on every company page and at the top of the directory. $49/month.

Members get full access to contact details, staff emails, and direct phone numbers.

Join Now

About

Unknown Quantity is a feature film production company founded in January 2026 by screenwriter-producer Chris Bremner and veteran producer Jeff Arkuss, operating under a writing and producing deal at Sony Pictures. The company focuses on developing and producing commercial, high-concept feature films — including franchise IP and original specs — with a particular emphasis on broad audience appeal and discovering emerging writers. Since its launch, Unknown Quantity has rapidly set up multiple projects at Sony Pictures and Screen Gems, including Permission, You Up, White Knight, Castle, and Ram (at Netflix), demonstrating an unusually active slate for a newly launched banner.

Contact

Members only

Contact details are member-only

Contact details for Unknown Quantity (address) are on file at Production List, last updated September 24, 2026, and are available to members. Membership is $29.95 for the first month.

Unlock address, phone, and email for Unknown Quantity and every other company in the directory.

Join to view

Credited on its productions · 1

People credited on Unknown Quantity's productions. Many work for the other companies on those projects, not for Unknown Quantity.

Jeff Arkuss · Producer · 2 productions

Member Discussion

No member discussions about Unknown Quantity yet. Industry members trade intel, hiring news and partnership leads in The Backlot, the members-only community on ProductionList.

Start the first discussion — join free Log in What is The Backlot?

Productions · 2

This week's list: 128 productions in pre-production and production

See all 128 →Members see contacts for all 128. Join

🔒

Members Only

Join to see full contact details, staff emails, and all linked productions.

Join Now — See Pricing Already a Member? Login

Source: Production List, published by the Film & Television Industry Alliance. Cite this page as https://www.productionlist.com/production-contact/unknown-quantity (last updated Sep 24, 2026).