An excerpt from Film Art: An Introduction:

“In both narrative and nonnarrative films, our eye also enjoys the formal play presented by unusual angles on familiar objects. “By reproducing the object from an unusual and striking angle,” writes Rudolf Arnheim, “the artist forces the spectator to take a keener interest, which goes beyond mere noticing or acceptance. The object thus photographed sometimes gains in reality, and the impression it makes is livelier and more arresting.””

Bordwell, D. and Thompson, K. (2016). Film Art: An Introduction. Boston: McGraw Hill.