It's in Innovations West (I believe that's the one we were in). When you go in turn to the right and go past the firetruck, there's a curtain on the right hand side. You'll see the line although it's not very long. When myself and dd7 were just there the first week of Oct. the characters where both Mickey and Pluto. They give you a voucher that you take to the camera shop that's on the right hand side next to Space Ship Earth when you walk into the park. I got the best side profile pic of dd and Mickey as they were saying hello. The cm taking pictures also agreed to take one with our camera. It's worth doing just remember that it's only for a certain time period that I believe ends at 4pm.