The Mercury Theatre on the Air in the context of Campbell Soup Company

George Orson Welles (May 6, 1915 – October 10, 1985) was an American actor and filmmaker. Remembered for his innovative work in film, radio, and theatre, he is considered among the greatest and most influential filmmakers of all time.

Aged 21, Welles directed high-profile stage productions for the Federal Theatre Project in New York City—starting with a celebrated 1936 adaptation of Macbeth with an African-American cast, and ending with the political musical The Cradle Will Rock in 1937. He and John Houseman founded the Mercury Theatre, an independent repertory theatre company that presented productions on Broadway through 1941, including a modern, politically charged Caesar (1937). In 1938, his radio anthology series The Mercury Theatre on the Air gave Welles the platform to find international fame as the director and narrator of a radio adaptation of H. G. Wells's novel The War of the Worlds, which caused some listeners to believe a Martian invasion was occurring. The event rocketed the 23-year-old to notoriety.

Citizen Kane is a 1941 American drama film directed and produced by, and starring Orson Welles and co-written by Welles and Herman J. Mankiewicz. It was Welles's first feature film. The quasi-biographical film examines the life and legacy of Charles Foster Kane, played by Welles, a composite character based on American media barons William Randolph Hearst and Joseph Pulitzer, Chicago tycoons Samuel Insull and Harold McCormick, as well as aspects of the screenwriters' own lives.

After the Broadway success of Welles's Mercury Theatre and the controversial 1938 radio broadcast "The War of the Worlds" on The Mercury Theatre on the Air, Welles was courted by Hollywood. He signed a contract with RKO Pictures in 1939. Although it was unusual for an untried director, he was given freedom to develop his own story, to use his own cast and crew, and to have final cut privilege. Following two abortive attempts to get a project off the ground, he wrote the screenplay for Citizen Kane with Herman J. Mankiewicz. Principal photography took place in 1940, the same year its innovative trailer was shown, and the film was released in 1941.

The Mercury Theatre was an independent repertory theatre company founded in New York City in 1937 by Orson Welles and producer John Houseman. The company produced theatrical presentations, radio programs and motion pictures. The Mercury also released promptbooks and phonographic recordings of four Shakespeare works for use in schools.

After a series of acclaimed Broadway productions, the Mercury Theatre progressed into its most popular incarnation as The Mercury Theatre on the Air. The radio series included one of the most notable and infamous radio broadcasts of all time, "The War of the Worlds", broadcast October 30, 1938. The Mercury Theatre on the Air produced live radio dramas in 1938–1940 and again briefly in 1946.

"The War of the Worlds" was a Halloween episode of the radio series The Mercury Theatre on the Air which was broadcast live at 8 pm ET on October 30, 1938 over the CBS Radio Network. The episode was directed and narrated by Orson Welles as an adaptation of H. G. Wells' novel The War of the Worlds and is infamous for inciting a panic by convincing some members of the listening audience that a Martian invasion was actually taking place.

The first half of the program was delivered in a realistic "breaking news" format. Since the Mercury Theatre on the Air had few commercial interruptions, the first break came after fictional reporters had described a devastating alien invasion and the fall of New York City. This apparently caused some confusion and fear among its listeners, though the scale of the panic is disputed. Popular legend holds that some of the radio audience may have been listening to the much more highly rated show The Chase and Sanborn Hour with Edgar Bergen on NBC and switched to "The War of the Worlds" during a musical interlude, thereby missing Welles's introduction of his show as a work of science fiction. However, modern research suggests that this happened only in rare instances.