In 1979, Clint made a rare excursion to Paramount pictures, his previous film for Paramount was the musical Paint Your Wagon some 10 years earlier in 1969. Clint was at the studio making Escape from Alcatraz at the time. The other big picture from Paramount that year was Star Trek The Motion Picture, the first big screen adventure that reunited the original TV cast.
Clint and actor William Shatner had apparently been friends from way back, so it was a good opportunity for them to met up in between filming. Clint turned up with his son Kyle and his daughter Alison in order to meet both Spock (Leonard Nimoy) and Kirk (William Shatner) (back to camera).
This photo seems to be the only record of the day - and the only one I have ever seen. I've often wondered if any other photos exist from this meeting. If you can help or know of any others, please get in touch.