Liz Marshall is an award-winning Canadian filmmaker based in Toronto. Since the 1990s, she has directed and produced independent projects and been part of film and television teams, creating broadcast, theatrical, campaign and cross-platform documentaries shot around the world. Marshall's feature length documentaries largely focus on social justice and environmental themes through strong characters. She is known for The Ghosts in Our Machine and for Water on the Table, for which she also produced impact and engagement campaigns, and attended many global events as a public speaker. Water on the Table features water rights activist, author and public figure Maude Barlow. The Ghosts in Our Machine features animal rights activist, photojournalist and author Jo-Anne McArthur.