What process should be used to develop Fujifilm motion picture stock such as Eterna 400T or F-64D? Is it ECN-2 like the Kodak Vision3 films, C-41 with a remjet removal step or something else entirely? To my surprise I couldn't find any information regarding the official specifications.
As Fuji's marketing sheet states, the film is processed in ECN-2.
If it is not often mentioned, it is probably because it is just as obvious, that colour negative cinema film is processed in ECN-2, as it is that still film is processed in C-41.