I Know This Much Is True
I Know This Much Is True is a series that has completed production with Production Office and FilmNation Entertainment (NY) attached. Derek Cianfrance (director), Judith Regan (producer) and Jeff Bernstein (producer) are attached. It was scheduled to shoot in Poughkeepsie, NY in March 2019. Production List last updated this listing on April 28, 2026.
Project Summary
Middle-aged Dominick Birdsey recounts his troubled relationship with Thomas, his paranoid schizophrenic twin brother, and his efforts to get him released from an asylum.
Production Contacts— Members Only
The production office contacts for I Know This Much Is True are on file at Production List, last updated April 28, 2026, and are available to members. Membership is $29.95 for the first month.
Cast & Crew
Directing
| Director | Derek Cianfrance |
Production
| Producer | Judith Regan |
| Producer | Jeff Bernstein |
Writing
| Writer | Derek Cianfrance |
Cast
| Cast | Mark Ruffalo |
Contact details for each person listed are on file and available to members.
Working on I Know This Much Is True
I Know This Much Is True has finished principal photography. How productions hire crew · Working as an extra · Reaching the production office
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Source: Production List, published by the Film & Television Industry Alliance. Cite this page as https://www.productionlist.com/production/i-know-this-much-is-true (last updated Apr 28, 2026).