This Is the Zodiac Speaking is a three-part Netflix documentary released in 2024, directed by Ari Mark and Phil Lott. According to the documentary, Arthur Leigh Allen was the Zodiac Killer. This identification is the position advanced by the filmmakers and is contested; Allen was a longtime suspect who was never charged and has died, and no charge against him was ever established.
The title echoes the opening phrase used in some of the Zodiac letters.