Her career reflected both versatility and determination. Cannon moved easily between comedy, drama, and suspense, earning three Academy Award nominations, several Golden Globe nods, and a Saturn Award. In 1983, her influence on entertainment was cemented with a star on the Hollywood Walk of Fame. Films such as Bob & Carol & Ted & Alice, Heaven Can Wait, The Last of Sheila, and Deathtrap highlighted her ability to balance wit and emotional depth, portraying women who felt intelligent, complex, and real.
One of the most publicized aspects of her life was her marriage to Cary Grant. While the pairing seemed legendary from the outside, Cannon later revealed the emotional strain it placed on her. She described feeling increasingly controlled and disconnected from her own identity. Although the marriage lasted only three years, it left a lasting impact. Still, Cannon has spoken about Grant without bitterness, emphasizing their shared bond through their daughter, Jennifer, who became a grounding force in her life.