I don't know enough about what some of the instruments should be saying in flight, but some of them certainly seemed to be in the position I would expect on the ground and while they showed a picture of an engine running, none of the clips with the boy in the captain's seat could definitely be said to be with the aircraft off the ground. There was carefully nothing visible out of the windows but a staged filming with careful camera angles and aircraft positioning could achieve all of that on the ground.