teharri said:
Isn't Vader in that hanger right after the falcon escapes?
No, there is more than one hangar entrance. When Leia is briefing the rebels she says " all troop carriers will assemble at the North Entrance. " and at the beginning of the movie when Han asks the rebel if Luke had checked in he replies "I haven't seen him. It's possible he came in through the south entrance". Now we can determine from this that there are at least 2 entrances, North & South, but as both of these lines are delivered when they are near the hangar entrance where the Falcon is parked, i would say there are more than 2 and that the base is quite large.
I'm just putting the finishing touches to a slightly extended trailer. It is based upon the "final" trailer, but all the shots have been swapped with the latest versions direct from ESB:R, with the final colouring and FX work ( for most shots) plus a few extra new ones. Once it's finished i'll post a link