Inspired by a real-life experience of Margolin’s own grandmother, THELMA puts a clever spin on movies like MISSION: IMPOSSIBLE, shining the spotlight on an elderly grandmother as an unlikely action hero. In the first leading film role of her 70-year career, Squibb portrays the strong-willed Thelma with grit and determination, demonstrating that she is more than capable of taking care of business – despite what her daughter Gail (Posey), son-in-law Alan (Gregg), or grandson Danny might believe.