The topology of the surface of the thin polymer films obtained on glass from the micellar solutions of the samples of gelatin in an isooctane–water–sodium bis(2-ethylhexyl) sulfosuccinate (AOT) mixture upon varying the average molecular weight M of the polymer and at a constant molar ratio H 2 O/AOT = 40 is studied by electron microscopy. It is shown that films with a characteristic structure are formed from the solutions with the initial concentration of gelatin which corresponds to the gelation threshold: polymer nanoglobules are located in the cells of the physical network of pinnings of the macromolecules—the internal percolation cluster of the particles. Here, the average size of the globules drops with a decrease in M , and their polydispersity index grows. The same changes are observed for the cells of the network, in which local correlations of the density–density type weaken. The ratio of the average sizes of the cells and nanoglobules does not depend on M due to the universal fractal cluster structure of the films.