Many thanks to J and Ayako for finding the news links.
Keanu Reeves was in attendance at the Opening Gala of the Plus Cameraimage 2012. He was dressed in a dark suit, shirt and tie. He spoke at the opening and said a few words in Polish.
Live coverage of the festival can be seen at the link found here. They have now uploaded photos from the Opening Gala and they can be found here. Additional photos and thumbnails can be seen here and here, respectively. More photos are here.
Update: Darek from itv has contacted the site and supplied the link for a reboradcast of the Opening Gala. Unfortunately I was out and am just seeing his message, so I don’t know if it is too late. The link for the rebroadcast is here.