There were eight feature-length film versions made by re-editing a two-parter or adding extra footage/sequences from other episodes to an episode with the main plot.

. "To Trap a Spy (1964)"

• "The Vulcan Affair (S1E01)" - main plot
  
• "The Four-Steps Affair (S1E21)" - footage
  

. "The Spy with My Face (1965)"

• "The Double Affair (S1E08)" - main plot
  
• "The Four-Steps Affair (S1E21)" - footage
  
• "The Dippy Blonde Affair (S2E16)" - footage
  

. "One Spy Too Many (1966)"

• "Alexander the Greater Affair - Part 1 (S2E01)"
  
• "Alexander the Greater Affair - Part 2 (S2E02)"
  

. "One of Our Spies is Missing (1966)"

• "The Bridge of Lions Affair - Part 1 (S2E20)"
  
• "The Bridge of Lions Affair - Part 2 (S2E21)"
  

. "The Spy in the Green Hat (1967)"

• "The Concrete Overcoat Affair - Part 1 (S3E11)"
  
• "The Concrete Overcoat Affair - Part 2 (S3E12)"
  

. "The Karate Killers (1967)"

• "The Five Daughters Affair - Part 1 (S3E28)"
  
• "The Five Daughters Affair - Part 2 (S3E29)"
  

. "The Helicopter Spies (1968)"

• "The Prince of Darkness Affair - Part 1 (S4E04)"
  
• "The Prince of Darkness Affair - Part 2 (S4E05)"
  

. "How to Steal the World (1968)"

• "The Seven Wonders of the World Affair - Part 1 (S4E15)"
  
• "The Seven Wonders of the World Affair - Part 2 (S4E16)"
  

Sidenotes:

Fifteen years after the series ended, there was a sequel movie: "The Return of the Man from U.N.C.L.E.: The Fifteen Years Later Affair (1983)".

The actor Leo G. Carroll, who played Alexander Waverly (the head of the U.N.C.L.E. organization), had died in 1972. The new director of U.N.C.L.E., Sir John Raleigh, was played by Patrick Macnee.