The March of Time is an American newsreel series sponsored by Time Inc. and shown in movie theaters from 1935 to 1951. It was based on a radio news series broadcast from 1931 to 1945 that was produced by advertising agency Batten, Barton, Durstine & Osborn (BBDO). The "voice" of both series was Westbrook Van Voorhis. Produced and written by Louis de Rochemont and his brother Richard de Rochemont, The March of Time was recognized with an Academy Honorary Award in 1937.

A newsreel is a form of short documentary film, containing news stories and items of topical interest, that was prevalent between the 1910s and the mid 1970s. Typically presented in a cinema, newsreels were a source of current affairs, information, and entertainment for millions of moviegoers. Newsreels were typically exhibited preceding a feature film, but there were also dedicated newsreel theaters in many major cities in the 1930s and ’40s, and some large city cinemas also included a smaller theaterette where newsreels were screened continuously throughout the day.