Corrected entry: When Stark is talking to Steve Rogers in front of the new base, the door they came out of opens upwards, while a bit later you can see the door close sideways in the background when they stand next to Stark's car. (02:09:45)
Jorne Dumon
13th Sep 2015
Correction: The two doors are different. The door that slides closed sideways is the door to the garage after the car has come out of it, not the door the characters have just walked out of.