Yes, this is the kind of films I was wondering about.  When I was an aspirant with EV, they told me that they do not make available any of these older films.  I pushed the issue, saying they must have copies in their archives, and as an aspirant, I want to see M. during his days with DLM.  I was advised that M doesn't want to confuse anyone, and that EV does offer a video with excerpts (edited by M) of his past days.

I'd like to get copies of some of these films for research purposes, if anyone can help me get a hold of them.