Yep, looks like struts in top r.h. corner at 32"-37". The backgrounds, I'm sure, are bona fide aerial shots. But the lighting of the aircraft is just a little too beautiful, as well as the camera moves being somewhat infeasible. Note also that there is no sign of jet exhaust, which would surely have interfered with the view of the background on some shots. OTOH, one early shot of the tanker take off does include strobe lights. It is, as I said, very well done.