I don't know why, but for some reason I looked up Darmok and Jalad at Tenagra, I was looking for the scene where Picard speaks to the aliens in their language which he finally understands. It is on youtube. As is the Epic of Gilgamesh as told, either half remembered or abridged, by Picard. (Given that the guy he was telling was dying abridgment makes sense.)
It stands as one of the great episodes of The Next Generation.
I say we have an entire movie taking place on a ship in that culture. There could be humans on the ship, a sort of cultural exchange, but they would be in support roles. The movers and the shakers of the ship would be the Children of Tama themselves.
This is a movie that would almost certainly fail to make any money whatsoever, but I would find it fun.