From your very own source:
16 mm (Kodak Vision3 250D 7207, Vision3 500T 7219)
35 mm (Kodak Vision3 250D 5207, Vision3 500T 5219, Vision2 500T 5260)
8 mm (Kodak Vision3 500T 5219, Ektachrome 100D 5285)
Digital
Thus 4 different emulsions were used plus 3 different frame sizes. (Plus digital sensors)
And we don't know even what took place in postproduction...
"Half frame" is designation from still photography. It means 18x24mm in contrast to the standard 35mm format 24x36mm.
In the cine-world the area reduction when reducing film formats is even greater.