We report surface force measurements between emulsion droplets and flat air−water interfaces (foam films) in the presence of an aqueous statistical copolymer solution (of poly(vinyl alcohol) and poly(vinyl acetate)) in the dilute regime. We observe a repulsive force that is exponentially decaying and that cannot be attributed to electrostatic double-layer repulsion. The qualitative behavior of the repulsive force weakly depends on the polymer concentration, while its range is a function of the polymer average molecular weight that is varied from 10 000 to 155 000. The force is drastically affected when the temperature approaches the ϑ point (going from good to ϑ conditions). We show that the force range scales as the polymer coil radius of gyration. These results are compared with theoretical predictions.