An assembly of images that relate to each other in some way to create a single work or part of a work of art. A montage is more formal than a collage and is usually based on a theme. It is also used to describe experimentation in photography and film, in particular the works of Man Ray and Laszlo Moholy-Nagy who made a series of short movies and photographic montages in the 1930s. (See also Photomontage)