The
structuralist film theory emphasizes how
films convey meaning through the use of
codes and conventions not dissimilar to the way languages
are used to construct meaning in communication. An example
of this is understanding how the simple combination of shots
can create an additional idea: the blank expression on a
man's face, a piece of cake, and then back to the man's
face. While nothing in this sequence literally expresses
hunger--or desire--the juxtaposition of the images convey
that meaning to the audience. Alfred Hitchcock used this
technique and attributed its invention to D. W. Griffith.
Unraveling this additional meaning can
become quite complex. Lighting, angle, shot duration,
juxtaposition, cultural context, and a wide array of other
elements can actively reinforce or undermine a sequence's
message.