I think that Planet of the Apes (dir. Franklin J. Schaffner, 1968) has an excellent use of makeup, and the level of detail that went into the apes’ faces was incredible, even though the movie was made in the 60s. Their faces were applied using a mixture of makeup and prosthetics, which would have taken a long time to apply. As there were many extras in the film, a lot of time would have been spent applying everyone’s makeup. More modern Planet of the Apes films use post-production effects for the large cast numbers, which is more efficient than applying each person with makeup. However, this doesn’t look as realistic as the prosthetics do, because CGI effects can start to look outdated.