Montage (//) is a technique in film ing in which a series of short shots are ed into a sequence to condense space, time, and information. The term has been used in various contexts. It was introduced to cinema primarily by Sergei Eisenstein, and early Soviet directors used it as a synonym for creative ing. In French the word "montage" applied to cinema simply denotes ing. The term "montage sequence" has been used primarily by British and American studios, and refers to the common technique as outlined in this article.
The montage sequence is usually used to suggest the passage of time, rather than to create symbolic meaning as it does in Soviet montage theory.
From the 1930s to the 1950s, montage sequences often combined numerous short shots with special optical effects (fades, dissolves, split screens, double and triple exposures) dance and music. They were usually assembled by someone other than the director or the or of the movie.
The word montage came to identify…specifically the rapid, shock cutting that Eisenstein employed in his films. Its use survives to this day in the specially created "montage sequences" inserted into Hollywood films to suggest, in a blur of double exposures, the rise to fame of an opera singer or, in brief model shots, the destruction of an airplane, a city or a planet.
Two common montage sequence devices of the period are a newspaper one and a railroad one. In the newspaper one, there are multiple shots of newspapers being printed (multiple layered shots of papers moving between rollers, papers coming off the end of the press, a pressman looking at a paper) and headlines zooming on to the screen telling whatever needs to be told. There are two montages like this in It Happened One Night. In a typical railroad montage, the shots include engines racing toward the camera, giant engine wheels moving across the screen, and long trains racing past the camera as destination signs zoom into the screen.
"Scroll montage" is a form of multiple-screen montage developed specifically for the moving image in an internet browser. It plays with Italian theatre director Eugenio Barba's "space river" montage in which the spectators' attention is said to "[sail] on a tide of actions which their gaze [can never] fully encompass". "Scroll montage" is usually used in online audio-visual works in which sound and the moving image are separated and can exist autonomously: audio in these works is usually streamed on internet radio and video is posted on a separate site.
He devised vivid montages for numerous pictures, mainly to get a point across economically or to bridge a time lapse. In a matter of moments, with images cascading across the screen, he was able to show Jeanette MacDonald's rise to fame as an opera star in Maytime (1937), the outbreak of the revolution in Viva Villa (1934), the famine and exodus in The Good Earth (1937), and the plague in Romeo and Juliet (1936).
From 1933 to 1942, Don Siegel, later a noted feature film director, was the head of the montage department at Warner Brothers. He did montage sequences for hundreds of features, including Confessions of a Nazi Spy; Knute Rockne, All American; Blues in the Night; Yankee Doodle Dandy; Casablanca; Action in the North Atlantic; Gentleman Jim; and They Drive By Night.
Siegel told Peter Bogdanovich how his montages differed from the usual ones:
Montages were done then as they're done now, oddly enough—very sloppily. The director casually shoots a few shots that he presumes will be used in the montage and the cutter grabs a few stock shots and walks down with them to the man who's operating the optical printer and tells him to make some sort of mishmash out of it. He does, and that's what's labeled montage.
In contrast, Siegel would read the motion picture's script to find out the story and action, then take the script's one line description of the montage and write his own five page script. The directors and the studio bosses left him alone because no one could figure out what he was doing. Left alone with his own crew, he constantly experimented to find out what he could do. He also tried to make the montage match the director's style, dull for a dull director, exciting for an exciting director.
Of course, it was a most marvelous way to learn about films, because I made endless mistakes just experimenting with no supervision. The result was that a great many of the montages were enormously effective.
Siegel selected the montages he did for Yankee Doodle Dandy (1942), The Adventures of Mark Twain (1944), and Confessions of a Nazi Spy, as especially good ones. "I thought the montages were absolutely extraordinary in 'The Adventures of Mark Twain'—not a particularly good picture, by the way."
The sports training montage is a standard explanatory montage. It originated in American cinema but has since spread to modern martial arts films from East Asia. Originally depicting a character engaging in physical or sports training, the form has been extended to other activities or themes.
The standard elements of a sports training montage include a build-up where the potential sports hero confronts his failure to train adequately. The solution is a serious, individual training regimen. The individual is shown engaging in physical training through a series of short, cut sequences. An inspirational song (often fast-paced rock music) typically provides the only sound. At the end of the montage several weeks have elapsed in the course of just a few minutes and the hero is now prepared for the big competition. One of the best-known examples is the training sequence in the 1976 movie Rocky, which culminates in Rocky's run up the Rocky Steps of the Philadelphia Museum of Art. 
The simplicity of the technique and its over-use in American film vocabulary has led to its status as a film cliché. A notable parody of the sports training montage appears in the South Park episode, "Asspen". When Stan Marsh must become an expert skier quickly, he begins training in a montage where the inspirational song explicitly spells out the techniques and requirements of a successful sports training montage sequence as they occur on screen. The same song was later used in Team America: World Police in a similar sequence.
In "Once More, with Feeling", an episode of Buffy the Vampire Slayer, Buffy Summers does an extended workout while Rupert Giles sings one song; this distortion of time is one of numerous musical conventions made literal by a spell affecting Sunnydale. Prior to this sequence, Buffy Summers voices her concern that "this whole session is going to turn into some training montage from an '80s movie" to which Rupert Giles replies "Well, if we hear any inspirational power chords we'll just lie down until they go away". The original 1992 film of Buffy the Vampire Slayer includes a very clichéd training montage.
The music in these training montage scenes has garnered a cult following, with such artists as Robert Tepper, Stan Bush and Survivor appearing on several '80s soundtracks. Songs like Frank Stallone's "Far from Over," and John Farnham's "Break the Ice" are examples of high-energy rock songs that typify the music that appeared during montages in '80s action films.