Many thanks to @cpasducinema for tweeting their link!
Cpas du Cinema is reporting that another screening of Side by Side has been added to the schedule which will take place on Wednesday, October 15 at 18:45. Both Keanu Reeves and Chris Kenneally will be present at the screening and will hold a Q & A session afterwards. The article is here.
The announcement is also on the Festival Lumiere site. Ticket information is here.