''Kubrick found what he wanted by trying things out''
Real painfully;
No object passes the limb of a planet; 10 identical film takes with his Selson motor camera track, soup one take. Good? Add one more thing (against black) 9 takes, soup one take. Good? Add another object to the shot, 8 takes, soup one take. Good? Add star field, 7 takes, soup one take. Good? Add matt box holdout and new plastic ship, 6 takes, soup one take. Good? No? Start over.
All in 2.6 inch wide raw film stock, one frame per second.