The format for the group stages of the champions league are 32 teams split into 8 groups with 4 teams in each group. The top 2 with most points in each group progress to the next round and third place go in to the Europa League.
The groups as they finished this year are:
Group A: 1.Paris SG                Group B: 1.Schalke 04              Group C: 1.Malaga
                2.FC Porto                                2.Arsenal                                  2.AC Milan
                3.Dynamo Kiev                        3.Olympiakos                           3.Zenit St Petersberg
                4.Dinamo Zagreb                     4.Montpellier                            4.Anderlecht


Group D: 1.Borussia Dortmund        Group E: 1.Juventus                   Group F: 1.Bayern Munich
                2.Real Madrid                                   2.Shakhtar Donetsk                    2.Valencia
                3.Ajax                                               3.Chelsea                                     3.BATE Borisov
                4.Manchester City                             4.Nordsjaelland                          4.Lille

Group G: 1.Barcelona                        Group H: 1.Manchester United
                2.Celtic                                               2.Galatasaray
                3.Benfica                                            3.Cluj
                4.Spartak Moscow                             4.Braga