There are plenty of countries that are still using tapes. Hell, there's plenty of small market broadcast stations in the US that are only SD and only uprez to HD just before hitting the transmitter.

> how were films moved to video formats?

Films were transferred to video tapes with a telecine[0]. It was tape agnostic as it just created the video signal. Eventually, the telecine signal was captured directly to digital files bypassing tape altogether.

[0]https://en.wikipedia.org/wiki/Telecine