An article of footwear comprising: an upper; a sole; and an outsole; the upper comprising: a medial side, a lateral side, a toe end, a heel end, and a plantar region extending between the medial side, the lateral side, the toe end, and the heel end; the sole having a medial side, a lateral side, a toe end, a heel end, an upper-facing surface extending between the medial side, the lateral side, the toe end, and the heel end, a ground-facing surface opposite the upper-facing surface, a medial sidewall extending between the ground-facing surface and the upper facing surface along the medial side, and a lateral sidewall extending between the ground-facing surface and the upper-facing surface along the lateral side, the sole comprising: a polymeric foam composition forming at least a portion of the upper-facing surface and mechanically engaged with the upper plantar region; and a polymeric film composition forming the ground-facing surface of the sole and forming at least a portion of the medial side wall from the ground-facing surface toward the upper at a medial film edge and also forming at least a portion of the lateral side wall from the ground-facing surface toward the upper at a lateral film edge, wherein there is at least 1 mm between the upper-facing surface at the medial sidewall and the medial film edge and there is at least 1 mm between the upper-facing surface at the lateral sidewall and the lateral film edge; wherein the outsole is joined with the film composition on the ground-facing surface of the sole, the outsole forming an exterior surface of the article of footwear at a ground-contacting region; and wherein the polymeric foam composition extends as a continuous foam composition from the polymeric film composition on the ground-facing surface and the sidewalls (126, 128) to the upper-facing surface at a location of mechanical engagement with the upper. an upper; a sole; and an outsole; the upper comprising: a medial side, a lateral side, a toe end, a heel end, and a plantar region extending between the medial side, the lateral side, the toe end, and the heel end; the sole having a medial side, a lateral side, a toe end, a heel end, an upper-facing surface extending between the medial side, the lateral side, the toe end, and the heel end, a ground-facing surface opposite the upper-facing surface, a medial sidewall extending between the ground-facing surface and the upper facing surface along the medial side, and a lateral sidewall extending between the ground-facing surface and the upper-facing surface along the lateral side, the sole comprising: a polymeric foam composition forming at least a portion of the upper-facing surface and mechanically engaged with the upper plantar region; and a polymeric film composition forming the ground-facing surface of the sole and forming at least a portion of the medial side wall from the ground-facing surface toward the upper at a medial film edge and also forming at least a portion of the lateral side wall from the ground-facing surface toward the upper at a lateral film edge, wherein there is at least 1 mm between the upper-facing surface at the medial sidewall and the medial film edge and there is at least 1 mm between the upper-facing surface at the lateral sidewall and the lateral film edge; a polymeric foam composition forming at least a portion of the upper-facing surface and mechanically engaged with the upper plantar region; and a polymeric film composition forming the ground-facing surface of the sole and forming at least a portion of the medial side wall from the ground-facing surface toward the upper at a medial film edge and also forming at least a portion of the lateral side wall from the ground-facing surface toward the upper at a lateral film edge, wherein there is at least 1 mm between the upper-facing surface at the medial sidewall and the medial film edge and there is at least 1 mm between the upper-facing surface at the lateral sidewall and the lateral film edge; wherein the outsole is joined with the film composition on the ground-facing surface of the sole, the outsole forming an exterior surface of the article of footwear at a ground-contacting region; and wherein the polymeric foam composition extends as a continuous foam composition from the polymeric film composition on the ground-facing surface and the sidewalls (126, 128) to the upper-facing surface at a location of mechanical engagement with the upper.