As far as Spielberg knows, no one cuts a film with more invigorating flair than John Frankenheimer. The director of such classics as “Birdman of Alcatraz,” “The Manchurian Candidate” and “Seconds” had an innate sense of how a movie should flow. Speaking to Sight and Sound in 1977Spielberg commented, “His editing often took more energy than the content of the story. When I watched ‘The Manchurian Candidate’, I realized for the first time what film editing is.”
Spielberg took what he learned from Frankenheimer’s masterpiece, and applied it to the short films he made as a teenager in the 1960s.
Then I made some 8mm films at home and started experimenting with cutting and stitching scenes and tricks in the cut room. I learned all the negative things, the things I try not to do in movies, from television. One thing I learned from TV is that there is nothing worse than a close-up shot from chin to forehead. I remember watching ‘Paths of Glory’ and realizing that there were very few close-ups, but when Kubrick used close-ups it made sense.
https://www.slashfilm.com/959132/the-filmmaker-who-influenced-steven-spielberg-most-didnt-do-so-by-directing/ The filmmaker who most influenced Steven Spielberg did not do so as the director