Portions of Topaz were filmed on location in Copenhagen; Wiesbaden, West Germany; Virginia, Paris, New York City, and Washington, DC. The remainder of the film was shot at Universal Studios Hollywood and in and around Los Angeles.
Herein, what is the movie Topaz about?
When a Soviet official defects to the United States, he brings with him claims that Russia is using Cuba as a staging ground for nuclear missiles. CIA agent Michael Nordstrom (John Forsythe) enlists the help of French spy André Devereaux (Frédérick Stafford) to find out if the official's claims are true. Not only do the agents discover that the Soviet's suspicions are valid, but they also find out that a French spy ring known as "Topaz" is working with the Russians to uncover NATO secrets.
Likewise, who wrote Topaz?
Can Topaz be blue?
Imperial topaz is yellow, pink (rare, if natural) or pink-orange. Blue topaz is the state gemstone of the US state of Texas. Naturally occurring blue topaz is quite rare. Typically, colorless, gray, or pale yellow and blue material is heat treated and irradiated to produce a more desired darker blue.