The interview/talk segments of FS
with John Frankenheimer (director) and George Axelrod (co-producer/screenplay-writer) are all from February/March 1987, when "Manchurian Candidate" after almost 25 years was finally re-released to American cinemas (and then also on Home Video I think). Yes, fascinating talk.
Sinatra's "trim looks" as seen here still were partly because of he lost some weight following the fall 1986 emergency surgery (for diverticulitis) and January 1987 post-surgery. He appeared much feistier again by summer 1987 during his Italy tour.
(He also talked briefly about the re-release of Manchurian on Larry King Live in May 1988).