I feel just saying at the start of the group "Do you mind if we could just space bar through the cut scenes?" and seeing how others feel would work just as well. If one person says "Yes, I do mind" then I just watch them again. I know if I were in their shoes I would be pissed if I missed out on the interesting scenes just because others didn't want to see them again. I know this works both ways. "Why should one person decide what we can and can't watch?" While I understand that view point, I think somebody missing the scenes entirely (never having done it before) is worse than having to just sit through them again. That's just my personal stance though.