To me the 2 biggest games tonight are Lille Vs Real Madrid and Aston Villa Vs Bayern Munich.
In both cases, home teams are underdogs and we have a very similar odds in both matches. You could get around x1.60 for an away team to win.
I'm not sure about Lille Vs Real, as I don't follow the French league, but as for the second game, I don't think it will be an easy game for Bayern, I think the odds are misplaced and AV should not be that much of an underdog. I wouldn't go as far as to say AV should be the favourite, but I expect it to be a quite even game, and therefore I think a double-chance bet for AV to win or draw is a good value bet and could yield you around x2.20.