Theories of Montage

The 1925 Russian film "Battleship Potemkin" was a great example of montage editing for many reasons. It conveyed subliminal messaging and abstract ideas of its time period into a movie without outright saying what thaw were, but making them firmly identifiable.

 In the images above, you see on the left the part of the movie where the doctor is examining the rotten meat.  On the image on the right, it shows him explaining in a joyous tone that the meat is perfectly fine and that there was nothing wrong with it. It demonstrates via montage the vileness leaders.

My last example of this is from shrtly later in the film when the firing squad is about to kill several of the crew for not eating the rotten meat soup. The film makes a point to show the piest several times along with the tapping of a cross in his hand, coincided with the tapping of a sword hilt on an officer. This was an abstract way of showing the corruption between the ruling party and the church at the time.