canany one translate French?

As expert linguists we agree growstuff!

I think the Gestapo bloke is asking "Commerçants?" (businessmen/salespeople?)

couramment is fluently

But I still don't think he is asking what language he speaks, more his nationality.

Nannarose that’s what I thought. Not clear where you got it from ?

I'd translate it as a slightly amusing way to say "fluent" - like flowing - down a slope

Actually I think the wording is wrong here. It doesn't make sense.

If you study 2nd world war documents, French identity papers start with nom, then nationalité, followed by profession.
Therefore I think he is reading the word "commerçant" on the document which means a tradesman or shopkeeper.

I know Google renders it as “comme versant ” but perhaps it is “conversant” as in “conversational, fluent” ?
(Converser =to have a conversation)

It could be 'as pouring' but really depends on the context. The whole phrase or sentence would be helpful to translate it properly.

On the side?

Aha, is this the bit where the German is checking the documents?

Its one of the scenes from the film the great escape

GERMAN SPOKEN Ah Francais?
GERMAN SPOKEN Jawohl
FRENCH comme versant
FRENCH mais oui.Parlez-vous francsis
FRENCH unpeu
FRENCH votre accent est tres bon
FRENCH j'ai etudie dans les ecoles superieures
FRENCH tres bien passez

Oui.
Depends on the context.