When Twin Peaks: The Return premiered on Showtime in 2017, it was a moment filled with nostalgia, oddity, and the signature surrealism of director David Lynch. Among the eclectic characters, one presence stood out as both poignant and essential: the Log Lady. Catherine E. Coulson, who portrayed this enigmatic character, solidified her status as a cult icon within the Twin Peaks community, and she made an indelible mark one last time in the revival before her tragic passing from cancer in 2015.

Now, a new documentary titled I Know Catherine, The Log Lady, directed by Richard Green, delves into the intricacies of Coulsons final performance while also celebrating her rich life and illustrious career. Lynch himself referred to her as one of my dearest, closest friends, highlighting the deep bond they shared.

With Lynch's recent passing adding a layer of melancholy to the film, viewers can still see him in good health as he reflects on the longstanding relationship he cultivated with Coulson over the decades. The two first crossed paths in the 1970s when she was married to Jack Nance, the star of Lynchs debut feature film, Eraserhead. Coulson was an integral part of the late-1960s theater scene in San Francisco, where she initially met Nance, and while she filmed a role that ultimately didn't make it into Eraserhead, she honed her craft behind the scenes, working as a camera assistant on notable projects such as Star Trek II: The Wrath of Khan.

Yet, despite her talent as a behind-the-scenes contributor, it was in front of the camera where Coulson truly shined. I Know Catherine chronicles her journey toward the role that would define her legacy, the Log Lady, while also showcasing her continued passion for acting, particularly on stage. The documentary does not shy away from the reality of Coulson's battle with illness; it opens with a heartbreaking phone call she made to a mortuary to prepare for the inevitable, a somber yet poignant reminder of the life she faced as her health deteriorated.

Throughout the film, colleagues and friends share stories that reflect on Coulsons tenacity and unwavering energy, even in her final days. The documentary captures the essence of her spirit and dedication, illustrating how she continued to thrive in her craft until the very end.

While I Know Catherine emphasizes that there was much more to Coulson than her role as the Log Lady, her connection to Twin Peaks remains a significant part of her story. Co-stars, including Kyle MacLachlan, share fond memories of the joy she brought to the production. One associate recalls, She loved the joy it brought to people, reflecting on how thrilled Coulson was when Lynchs unconventional ABC soap opera gained a cult following.

The documentary also features insights from Twin Peaks co-creator Mark Frost, who discusses Coulsons contribution to the character of the Log Lady, who was strikingly different from Coulson in real life. Frost reminisces about the pilot screening of Twin Peaks, recalling a moment of laughter when the Log Lady was introduced to the audience. The matter-of-fact approach to her character, as Agent Cooper learns about her nickname, was a memorable point that resonated with fans and showcased Coulsons unique talent.

Combining humor with moments of gravity, the Log Ladywhose real name was Margaret Lantermanwas a character that commanded respect despite her peculiarities. As Frost articulates, she exuded a presence that was both respected and slightly feared, and when her log had something to communicate, it was understood that one must listen.

Coulsons measured and nuanced performance ensured that every time she graced the screen, her impact was undeniable. This includes her poignant final scenes in Twin Peaks: The Return, which were shot mere days before her passing. In a remarkable setup, Lynch directed her via Skype while he was on location filming the series, a testament to their collaboration and friendship.

For fans of David Lynch and Twin Peaks, I Know Catherine, The Log Lady is a must-watch. It provides an exceptionally intimate portrait of Coulsons life, made with love by those who knew her best. The documentary is set to open in New York City on May 1 and in Los Angeles on May 9, with a full list of screenings available at various theaters across the nation.