From the Le Grand Rex facebook page: 

Exclusive screening of the movie in Paris, Robert Pattinson and David Cronenberg will be there.

on Wednesday May 30th at 8:30pm

More info coming soon (ETA: at the end of the day or of the week)

This is the official facebook page of the Parisian movie theater where a lot of movies premieres/screenings take place.

ETA: The movie will be screened in English with French subtitles. Tickets will be on sale soon.

ETA2: There will be a red carpet. Rob and David will be there to present the movie. There wont be a Q&A tho.

source  via