Film does not usually have a single standardized, named color space in the way digital images do. It’s better to think of film as having a color gamut that can be measured or profiled, and that gamut can vary by film stock, processing, scanning, and especially the output medium.

Community answers note that some films have been compared graphically against spaces like Adobe RGB, with certain films extending farther in some reds but less in greens. That suggests film gamuts can be estimated, but not neatly reduced to one universal “film color space.” Different films can behave differently, including portrait vs. landscape-oriented emulsions.

In practice, print paper or the final display medium is often the more limiting factor than the film itself. There are also ICC profiles for photographic papers and related media, and hybrid film-to-digital workflows can push colors beyond what the original film captured through editing.

So: no single official color space for all film, but yes, film gamuts have been studied and approximated. If you want a practical answer, profile the specific film/scanner/paper workflow rather than looking for one universal film color space.