I'll go first--with only the trailer and promo info as content to judge by.
Here are a few things I spotted that made me say hmmmm....
Misnomber of "Field Hospital": The blurb under this trailer states: "In a tented field hospital on the coast of France.." The whole term 'field hospital' has stumped me in my research. What is a field hospital? Was it a 'real' entity or just a phrase generally used to mean a medical facility close to the fighting? I found the answer in the book Surgery at a Casualty Clearing Station (from 1918-online here) "THE Casualty Clearing Station is somewhat of an innovation in the organisation of the British Army Medical Service; it was first employed in active warfare in the early days of the present war. During the South African Campaign of 1899-1901 a somewhat corresponding unit existed in the shape of the Field Hospital, and when, after the campaign, the Army Medical Service underwent some degree of re-organisation, the Field Hospital was replaced by a unit which was termed a Clearing Hospital, and at an early stage in the present war the designation of Casualty Clearing Station was substituted for that of Clearing Hospital." (It does seem that some British allies on the Western Front DID use the term 'field hospital' to refer to a specific facility--I do not, however, have a citation at hand)
I can't say their use of the term 'field hospital' is entirely wrong, but by the appearance of their tents and their statement "reality of working near the front line" (from here) that what they mean is a casualty clearing station. That brings up the next problem...
VADs at CCS: The ladies wearing the cape (tippet) are QAIMNS Sisters--'real' nurses. They are the correct personnel for a CCS. However, the new arrivals' uniforms are that of VADs. There were no VADs at CCS. I don't have any primary source to quote on this, but will defer to expert Sue Light who stated here: "Never, ever, did VADs work in CCSs."
Arrival clothing: The trailer here shows the ladies arriving in street clothing. However, a directive here suggests that they were required to travel in their uniforms:
"CAMP KIT FOR THOSE PROCEEDING ON ACTIVE SERVICE--The following articles are to be provided by all members when proceeding on active service abroad. Uniform only is to be taken; no plain clothes are required." I am not 100% certain, but seems I recall while reading Dorthea's War (Diary of VAD), she made note of all the female medical personnel traveling in uniforms.
Looking over the list, except for the VAD issue, my other quibbles are very minor and perhaps unfounded.
One thing I am anxious to see developed is the non-medical gal who I suspect is the 'rich lady from England who put up the money for the facility.' I have seen evidence for these non RAMC/Red Cross hospitals condoned by Belgian and Serbian gov't but not British. If anyone has primary source documentation of a private sponsored British CCS, I would be very interested in the details.
What have you noticed?