The Three Lives of Thomasina (1964)
The Three Lives of Thomasina is a 1963 American magical realist film starring Patrick McGoohan, Susan Hampshire, and child actress Karen Dotrice in a story about a cat and her influence on a family. The screenplay was written by Robert Westerby and Paul Gallico and was based upon Gallico's 1957 novel Thomasina, the Cat Who Thought She Was God. The film was directed by Don Chaffey, and shot in Inveraray, Argyll, Scotland, and Pinewood Studios, England. Thomasina has been broadcast on television and released to VHS and DVD.
More at Wikipedia.