Since prints are apt to be degraded during projection, they are built to be more expendable than the camera original. The print film has higher light stability and lower dark stability IIRC. This is to allow high intensity projection without loss of quality. But today's films are a lot better than previous films.

That said, a huge proportion of Kodak's motion picture sale is in Vision print film (Eastman Color Print Film).

I believe that in sheer bulk, the print film far outsells the camera original just due to the way they are used and Kodak has the highest share of both markets.