These look like HQ screencaps to me, but I looked and couldn't find the videos. Very nice because we didn't get any pictured from the press conference (just a few twitpics and pictures from the photocall) and Rob looks adorable in those.
I included the photocall and premiere screencaps. TodoTwilightSaga posted the images in 3 big collages, but I was bored and cropped each image. They're not the best crops though.