This is last installment of the modern low budget trilogy with Augustine. However, he is not the centre piece as the director Anne Fontaine explained in the TIFF Q&A session. Instead the film pays tribute to Danielle Darrieux, who I am not familiar with but as you can see in the long list of credits here towards her name.
I first saw Augustine in 1995 in TIFF and I still remember the hilarious interview scene. Then came the Augustin, King of Kung-Fu in 1999. It is amazing that Anne Fontaine can keep the same flavor in all 3 films, and obviously the same spontaneity in Jean-Chretien Sibertin-Blanc's improvisation. (Also remember in '95 our Prime Minister was also named Jean-Chretien).
This movie revolves around Augustine, using his unique resourcefulness in putting on a play/show based on a very old script - a period piece. In fact, Anne Fontaine mentioned in the Q&A that the original intend was the old script but she did not feel it was right and switch gear into a comedy. Good choice!! Instead now we have a play within a movie, that also plays-off the script about 2 female counterparts that quarrels over a younger man. Maybe the movie also speaks about how age affect role selection/choice in this business.