Mills was also a regular and co-producer in several TV movies as well as appearing in Woody Allen’s 1966 comedy, Don’t Drink Water. She also starred alongside film legend Clint Eastwood in the 1971 thriller, Play Misty for Me, which is considered to be her most prominent role to date. Away from acting, the hot spinster launched her makeup line called The Eyes Have It. The cosmetic range spun from an instructional video where Mills shows how to achieve different makeup looks.