The movie was in color. I watched (parts of) it when I was young in the early 2000’s. The only scene I remember involved a man (maybe two?) with contraptions around their necks that served as homing beacons for these saw blades that shot out of a machine and chased him/them… not sure if they got decapitated or not… this scene may have involved desert ground… possibly a train (highly unsure), though they would not have been on it…
Screamers (1995)?
Wild Wild West (1999) With Will Smith and Kenneth Branagh.
Thanks, this is it!
Wild Wild west
Jorog was in first and gets credit for the Solve.