While McCallum got their start in acting (working closely with Three Sisters Theatre and Film, Blue Mountains, AUS since the age of seven), they quickly found their footing as a filmmaker following their work A Love Story (2022). McCallum's personal style is reflective of their childhood in the Blue Mountains, focusing on interhuman relationships and breaking down the components of the human condition. While McCallum's career is not yet grand, they are a promising up-and-comer in the Blue Mountain's cultural scene.