Noel Neill (Second Airline Ticket Agent) and Phyllis Coates (Mrs. Mulfory) both played Lois Lane: Neill in Superman (1948), Atom Man vs. Superman (1950) and Seasons Two to Six of Adventures of Superman (1952) and Coates in Superman and the Mole-Men (1951) and Season One of Adventures of Superman (1952).
The "enemy" aircraft in the first wave of attacks are American F-80 Shooting Stars, C-119 Flying Boxcars, & B-29/B-50 Superfortresses, complete with American markings. While the Soviet Air Force did have a bomber that was an almost exact copy of a B-29 that was forced to land in Siberia during WWII they did not have C-119s and F-80s.
Featured in Mystery Science Theater 3000. Season 7, episode 2.
A loose remake, starring Chuck Norris, was released in 1985 as Invasion U.S.A.