Many thanks to mohammed__touijrat for privately sharing his selfie with Keanu and a clip on instagram. They are here and here.
Many thanks to stevenabitbo for sharing a photo on instagram.
Many thanks to ba_akh1048 for sharing a photo on instagram.
Many thanks to Valentina Comis for sharing three clips of the stuntmen working out a scene and set photos on FB and to @Keanuital for tweeting the links. They are here, here, here and here.