Important note: This is not a film review. I hope to be able to find and add as many silent film synopsis of films that have a survival status of unknown or presumed lost. I try to do as much research as I can and it is not my intention to deceive anyone, for sometimes the film does exist and some presumed lost films are still being discovered. I am more than delighted if someone has knowledge of a film listed as lost but survives, as I wish all silent films did survive. I hope the reader enjoys this brief synopsis.Marian Westover ( Gloria Swanson ) is loved by wealthy young Cullen Dale ( Wallace Reid ) and his best friend, Harvey Gilroy ( Elliott Dexter ), but the latter's loyalty to Dale keeps him silent. After they both sustain injuries in a polo game, Cullen shows particular solicitude in caring for his friend. Cullen proposes to and is accepted by Marian, but she becomes jealous of his former girl friends, and when Jessica Ramsey ( Dorothy Cumming ) arrives and tries to capture Cullen, Marian fails in emulating her athletic prowess. Jessica invites the couple to a mountain lodge, but when Marian refuses to go Cullen sweeps her into an automobile and has a marriage ceremony performed. She returns home, and Cullen goes on to the lodge, keeping his marriage secret. A storm prevents Cullen from returning home, and Marian, in alarm, enlists the aid of Gilroy; at the lodge everything is explained to the satisfaction of all but Jessica.This 1921 silent comedy/drama directed by Sam Wood, starring Wallace Reid and Gloria Swanson. Produced by the Famous Players-Lasky Corporation. The film began as an outtake sequence from Cecil B. DeMille's The Affairs of Anatol (1921), and was expanded by director Sam Wood into a new feature. The survival status of Don't Tell Everything (1921) is listed in the American Silent Feature Film Database as; No holdings located in archives.