Actually, the gamma of motion picture stock is identical to still photo aims; a 0.65 gamma for "normal" processing, 0.75 for a one-stop push and 0.85 for a two stop push (rare). It goes without saying, a one-stop "pull" is figured at 0.55 gamma...
The print stock is intentionally developed to a higher contrast/gamma for projection to offset the losses in enlargement of the image, loss of definition due to projection optics and atmospheric haze in the theater. Reflected images have different rules for contrast than transmitted images, like viewing from a print or a computer screen.
The positive stock used to make motion picture prints is tailored to fit the enhanced contrast range, not a byproduct of the printing process. Practically all release printing since the mid-1950's has been via direct contact printing; one of the least contrasty methods available.
Also, grain is less a concern with moving image stocks due to the rapidity of image placement on the screen, so you can get by with more grain on a motion picture stock than a still film stock, as the grain tends to dither-out upon projection. That's why motion picture stocks shot and printed tend to look more grainy than still film stocks.