He wrote the screenplay for the 1998 film Stuart Bliss, in which he also played the title character.[2]Stuart Bliss was also produced by Zelniker, and won the Northampton Film Festival's Best of Fest Award in 1998.
Zelniker wrote, produced, and directed Falling, which won Indie Fest USA International Film Festival's Best of Festival Award in 2012. In 2013 he began teaching Acting for Film, Chekhov Technique and Performing Shakespeare at the Los Angeles Campus of the New York Film Academy after teaching Acting for the Camera, Acting Technique and Shakespeare at the American Musical and Dramatic Academy from 2004 to 2013.
In 2018, Zelniker became a climate leader with the Climate Reality Project, trained by former Vice President Al Gore. He served as the Co-Chair of Climate Reality's Los Angeles Chapter from 2018 - 2021. He wrote, produced, edited and directed, The Issue with Tissue - a boreal love story. a documentary about the little known, largely untold story of the boreal forest and the Indigenous Peoples who call it home.
The Issue with Tissue held its world premiere at Cinéfest Sudbury International Film Festival on September 18, 2022, where it was recognized with their Audience Choice Runner-up Award. Playing in theaters in Los Angeles, Toronto, Montreal, Marin County and Quebec City and at film festivals across North America, The Issue with Tissue qualified for major awards' consideration, including being nominated for the 2023 Next Generation Indie Film Awards Best Documentary Feature.
^"Terry Fox Story wins best picture Genie". The Globe and Mail, March 22, 1984.
^ ab"Blissful success: Former Montrealer Michael Zelniker is wowing critics and audiences with his new movie Stuart Bliss". Montreal Gazette, August 31, 1998.
^"'Bird' who gave jazz new wings". Vancouver Sun (1988), October 12, 1988.
^"Banting, Best earned their glory". Windsor Star, October 15, 1988.
^ ab"Actor can only dream of Tangiers". Toronto Star, February 6, 1991.
Canadian Film Awards 1968-1978, Genie Awards 1980-2011, Canadian Screen Awards 2012-present. Separate awards were presented by gender prior to 2022; ungendered awards for best performance regardless have been presented since.