A comment below this answer to Disc mounted on lunar rover? suggests that
...a number of documented microfilms that were on the Apollo missions.
meaning I presume that bits of microfilm were physically aboard Apollo missions (not that the written material was on (i.e. about) the Moon), and the context suggesting that some of these made it to the proximity of the Moon or perhaps even landing.
What is the nature of the Apollo microfilm? Were astronauts provided microfilm readers? Or was it souvenir type material similar to postage stamps? Was it provided to trade (along with chocolates, nylons and cigarettes1) with the locals for safe passage home?
Did any microfilm make it to lunar orbit or the lunar surface? Was any then left there amongst all the other thing that remained there in order to save weight for the return to Earth?