Revealing mistake: On the maiden flight of the X-15, the B-52 that carries it to launch position has several silhouettes of the X-15 painted on it, obviously one for every time it carried the X-15 for a mission. Clearly the real B-52 they used for X-15 launches and they didn't account for the fact that this was meant to be the first. (00:48:50 - 00:50:05)
Visible crew/equipment: While approaching the two test pilots in the hanger, the shadow of the camera can be seen on the lockers. (01:31:00)
