The nature of the molecular weight (MW) dependence of the glass transition temperature (T-g) in polymers still remains a Subject of discussion. Recently, Hintermeyer et al. [Macromolecules 2008, 41, 9335] proposed that the MW at which the dependence of T-g saturates corresponds to the molecular weight between entanglements, M-e. We demonstrate on the example of four polymers that there is no relationship between M-e and saturation of the molecular weight dependence of T-g.