I'm not asserting anything. A 35mm Kodachrome transparency, like other 35mm transparencies on films of comparable ISO rating, contains an equivalent of approximately 140 megapixels of data in its 24 mm x 36 mm image.

Citation: Langford, Michael (2000). Basic Photography (7th Ed.). Oxford: Focal Press. p. 99.

Film has vastly more resolution than even high-end DSLRs. This isn't shocking or surprising if you know anything about the space.