The first films with sound were called "". when sound was added to film in 1927,
a. (1) talkies; (2) many film stars could no longer act because their voices were not well-suited for film
b. (1) moving pictures; (2) other innovative techniques immediately began to be used, including the 180 degree rule, panning shots, and fades
c. (1) projections; (2) many directors were forced to hire writers to create storylines based on old silent films
d. (1) stills; (2) hollywood was established as the popular place to direct and produce modern films