Michael Caine returns as the Len Deighton creation "Harry Palmer" in what feels like an inexpensive and undemanding espionage story set during the Cold War. He teams up with Jason Connery, who plays the less substantial character of “Nick,” under the direction of "Alex," portrayed by Michael Gambon in a surprising casting choice. Their mission involves stopping a plot to unleash a virus stolen by North Koreans. Sever…