33 Avengers
4 Avengers cast
38 X Men: First Class
spoilers for both films

Examples:

001	002	003
004	005	006
007	008	009
010	011	012
013	014	015
016	017	018
019	020	021
022	023	024
025	026	027
028	029	030
031	032	033
034	035	036
037	038	039
040	041	042
043	044	045
046	047	048
049	050	051
052	053	054
055	056	057
058	059	060
061	062	063
064	065	066
067	068	069
070	071	072
073	074	075

Please don't hotlink. Please do credit. Comments are loved.
Credit for graphic resources, as ever, are here.

And a few requested variations: