The `Handle-o-Meter' method of determining flexural rigidity of thin (10 to 200 μm thick) polymeric films is discussed. This method determines the force which has to be applied along the centre line of a film specimen laid over a slot, so that the film is forced into the slot. The relationships between the `Handle-o-Meter' stiffness as measured by this force, the flexural rigidity and the tensile moduli of a variety of polymeric films have been investigated. An unexpected relation obtained by previous workers was shown to be due to failure to allow for the effects of gravitation. Computation showed that frictional forces have also to be taken into account. Within the limits of experimental error, the results for `Handle-o-Meter' stiffness were shown to be in agreement with flexural rigidities calculated from film dimensions and tensile moduli. Considerable uncertainty is introduced by the limited accuracy of measurement of coefficient of friction.