Entr'acte (pronounced: [ɑ̃tʁaktə]), French Entracte, means "between the acts" (German: Zwischenspiel, Italian: Intermezzo, Spanish: Intermedio). It can mean a pause between two parts of a stage production, synonymous to an intermission, but it more often indicates a piece of music performed between acts of a theatrical production. In the case of stage musicals, the entr'acte serves as the overture of act 2 (and sometimes acts 3 and 4, as in Carmen). In films that were meant to be shown with an intermission, there was frequently a specially recorded entr'acte on the soundtrack between the first and second half of the film, although this practice has died out in recent years.

Originally entr'actes resulted from stage curtains being closed for set or costume changes: to fill time as not to halt the dramatic action, to make a transition from the mood of one act to the next, or to prevent the public from becoming restless. In front of the closed curtains, the action could be continued during these entr'actes, albeit involving only players with no scenery other than the curtain, and a minimum of props.

René Clair (11 November 1898 – 15 March 1981) born René-Lucien Chomette, was a French filmmaker and writer. He first established his reputation in the 1920s as a director of silent films in which comedy was often mingled with fantasy. He went on to make some of the most innovative early sound films in France, before going abroad to work in the UK and USA for more than a decade. Returning to France after World War II, he continued to make films that were characterised by their elegance and wit, often presenting a nostalgic view of French life in earlier years. He was elected to the Académie française in 1960.

René Clair was born and grew up in Paris in the district of Les Halles, whose lively and picturesque character made a lasting impression on him. His father was a soap merchant; he had an elder brother, Henri Chomette (born 1896). He attended the Lycée Montaigne and the Lycée Louis-le-Grand. In 1914 he was studying philosophy; his friends at that time included Raymond Payelle who became the actor and writer Philippe Hériat. In 1917, at the age of 18, he served as an ambulance driver in World War I, before being invalided out with a spinal injury. He was deeply affected by the horrors of war that he witnessed and gave expression to this in writing a volume of poetry called La Tête de l'homme (which remained unpublished). Back in Paris after the war, he started a career as a journalist at the left-wing newspaper L'Intransigeant.

Francis Picabia (born François Marie Martínez Picabia, 22 January 1879 – 30 November 1953) was a French painter, poet, and typographist, associated with both the Dada and Surrealist art movements.

Francis Picabia was born in Paris of a French mother and a Spanish-Cuban father who was an attaché at the Cuban legation in Paris. His mother died of tuberculosis when he was seven. Some sources would have his father as of aristocratic Spanish descent, whereas others consider him of non-aristocratic Spanish descent, from the region of Galicia. Financially independent, Picabia studied under Fernand Cormon and others at the École des Arts Decoratifs in the late 1890s.

In 1894, Picabia financed his stamp collection by copying a collection of Spanish paintings that belonged to his father, switching the originals for the copies, without his father's knowledge, and selling the originals. Fernand Cormon took him into his academy at 104 boulevard de Clichy, where Van Gogh and Toulouse-Lautrec had also studied. From the age of 20, he lived by painting; he subsequently inherited money from his mother.

Marcel Duchamp (28 July 1887 – 2 October 1968; French pronunciation: [maʁsɛl dyˈʃɑ̃]) was a French artist whose work is most often associated with the Dadaist and Surrealist movements. Considered by some to be one of the most important artists of the 20th century, Duchamp's output influenced the development of post-World War I Western art. He advised modern art collectors, such as Peggy Guggenheim and other prominent figures, thereby helping to shape the tastes of Western art during this period.

Duchamp challenged conventional thought about artistic processes and art marketing, not so much by writing, but through subversive actions. He famously dubbed a urinal art and named it Fountain, though in a 1917 letter to his sister Duchamp indicates that a female friend, possibly the Baroness Elsa von Freytag-Loringhoven, conceived of the urinal as sculpture and sent it to him under the pseudonym Richard Mutt. Duchamp produced relatively few artworks, while moving quickly through the avant-garde circles of his time.

Man Ray (born Emmanuel Radnitzky) (August 27, 1890 – November 18, 1976) was an American artist who spent most of his career in Paris, France. Described as a modernist, he was a significant contributor to both the Dada and Surrealist movements; although his ties to each were informal. Best known in the art world for his avant-garde photography, Ray produced major works in a variety of media and was a renowned fashion and portrait photographer, even though he considered himself a painter above all. Ray is also noted for his work with photograms, with the artist coining the term "Rayographs" in reference to himself.

Whilst appreciation for Ray's work beyond his fashion and portrait photography was not forthcoming during his lifetime, especially in his native United States, his reputation has grown steadily in the decades since.^{[citation needed]}

From the time he began attracting attention as an artist until his death more than sixty years later, Man Ray allowed little of his early life or family background to be known to the public, even refusing to acknowledge that he ever had a name other than Man Ray.