Earth vs. the Flying Saucers
Clips of Ray Harryhausen's effects work from the 1956 movie, EARTH VS. THE FLYING SAUCERS, are used in a number of places in this film, including the segment on Welles' own "War of the Worlds" broadcast.
There is no acknowledgment in the end credits of the copyright owners of this footage. It wasn't in the public domain back then, nor is it in the public domain now. Did they license the right to use it from Columbia Pictures and just not include that info in the end credits? Or did they just steal the footage?