Echo of Diana is a 1963 British second feature ('B')[1] film directed by Ernest Morris and starring Vincent Ball, Betty McDowall and Geoffrey Toone.

When Joan enlists the help of reporters Clare Owen and Bill Vernon, their flats are raided, and they find themselves involved in an espionage adventure.

The Monthly Film Bulletin wrote: "An unassuming but swift spy thriller, which is sufficiently intriguing to make its unconvincing and melodramatic dénouement seem comparatively unimportant.

"[3] The Radio Times Guide to Films gave the film 2/5 stars, writing: "In this low-budget spy drama, the newshound leads are two Australian actors, Vincent Ball and Betty McDowall, which makes a refreshing change from the usual fading Hollywood stars.

Their noses for a story begin to twitch when a mysterious death puts them on the track of one of the most alfresco covert operations you are ever likely to clap eyes on.