Nice contribution Peter, every tidbit of info helps.
Still wading thru these video comments (many difficult to read for their ignorance of history on both sides of this WW II equation). There was one ray of sun light found that may suggest that at least I might have been headed in the wrong direct; south rather than north in my assumptions about this airfield possible location.
The original comment was again in German, translated to English here:
"The first few minutes belong to Bad Wildungen in Northern Hesse. From 1:16 minutes you can see the Brunnenstraße, where you can see the post on the left. Over the mountain, you can also see a part, where it goes down the left Lindenstraße at the pharmacy. This part with the pharmacy can be seen in other films at the end of the III. Empire. (e.g., ZDF and Arte). From minute 2:25 you can see Frankenau with the sign in the direction of Frankenberg / Eder. Thousands of German prisoners of war gathered in these meadows in 1945 and were then transported to the Rhine meadows.
If then the cameraman drove always direction Kassel, would be the only airport with such a great flat area only Fritzlar. Where even larger aircraft can land on it today. Is my subtle opinion, since I spent there 10 years of my Bundeswehr time. The hangars could be the halls 3 and 4 and in between the tower. Maybe a Fritzlarer can confirm or deny this.
The station could be in size (if you follow the cameraman now) the Kassel freight yard. But is a mere guess of me.
Unfortunately, I have been searching in vain for years for this camera crew, who in March 1945 had to travel from Marburg via Frankenau, Bad Wildungen and Kassel to Göttingen. Unfortunately, recordings of a local struggle in Löhlbach have not been filmed or lost. Maybe this is somehow together after 71 years ?? !!"
So, with that thought in mind Fritzlar Air Field, Heeresflugplatz Fritzlar Advanced Landing Ground (ALG) Y-86 may be another good candidate. Related to Frankenberg it is only 34 km / 21 miles from Fritzlar Field. If this is Fritzlar Field the film may be showing the evacuation of Ex-POWs from Ziegenhain / (now Trutzhain); Stalag IX A, located about 24 km / 15 miles south of Fritzlar Field. Lt. Col. George C. Stevens' camera crew would not need to travel far to capture these images.
There is a postwar (1946) video of Fritzlar Field which certainly looks similar, but still with doubts in confirming the earlier films airfield location, in my opinion:
https://youtu.be/EbYL5wtMM98
In some of these old films one airfield hanger looks the same as a similar hanger on a different airfield.