Christopher Nolan avoided CGI and used 7ft stuntmen to portray Laestrygonians in The Odyssey. The giant leader, King Antiphates, is portrayed by actor Josh Stewart, while Matt Damon’s stunt double is Devyn Dalton, who is just under 5ft.

[u/padfoony]

[u/YaManMAffers]

There were two moments in the movie when you can tell CGI was used. The baby giant (the young face on a man's body, and the cyclops, and the cyclops was barely noticeable CGI.

[u/OlasNah → u/YaManMAffers]

You can also see some of the practical effects rigging in the film. In the scene with the giants, you can tell that some of the trees are being physically moved around because the actors and the trees are on some sort of platform(s) that tweaks their angle or pov for the forced perspective. It mostly works, but you can tell what's going on.