This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article provides insufficient context for those unfamiliar with the subject. Please help improve the article by providing more context for the reader. (May 2018) (Learn how and when to remove this message) This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.Find sources: "Stone Horizons" 1956 film – news · newspapers · books · scholar · JSTOR (May 2018) Some of this article's listed sources may not be reliable. Please help improve this article by looking for better, more reliable sources. Unreliable citations may be challenged and removed. (May 2018) (Learn how and when to remove this message) (Learn how and when to remove this message)