The Heyday of the Silents
By the middle of the 1920s the cinema had reached a peak of
splendour which in certain respects it would never again
surpass. It is true that there was not synchronized sound, nor
Technicolor, except at a very experimental stage.
Synchronized sound was to be introduced at the end of the
decade, while Technicolor came into use only in the mid
1930s and beyond. Nor, except in isolated cases like Abel
Gance's Napoléon (1927), was there anything approaching
the wide screen that audiences were to be accustomed to
from the 1950s onwards. It is also the case that viewing
conditions in many parts of the world, particulary in rural
areas, remained maskeshift and primitive.
Source: The Oxford History of World Cinema EDITED BYGEOFFREY
NOWELL-SMITH OXFORD UNIVERSITY PRESS 1996