Photos of Keanu Reeves on the red carpet have been posted by both Wire Images and Getty Images. You can view the thumbnails here and here. I’ll post if any appear.
Update: There are thumbnails on NewsCom. You need to use the seach bar. Thanks to @keanulatino for tweeting the link!
There are photos at People A Paris. Thanks to Ayako and @Keanu_RusClub for tweeting the link!
Update X2: Praeteritum Praesens Futurum on tumblr has some nice photos here.