A wrapping machine comprising: a wrapping-machine frame; a guide mounted to the wrapping machine frame; a guide actuator operably connected to the guide to move the guide vertically relative to the wrapping-machine frame; a wrapping assembly mounted to the guide and comprising a film carriage, the film carriage comprising: a film-carriage frame; a first pre-stretch roller (140,150) rotatably mounted to the film-carriage frame; a first pinch-roller assembly (130, 160) comprising an arm (132a, 132b) and a first pinch roller (131, 161) having a first-pinch-roller rotational axis (RA 131, RA 161), wherein the first pinch roller is connected to the arm so: the first pinch roller is rotatable relative to the arm about the first pinch roller rotational axis; and the first pinch roller is pivotable relative to the arm to pivot the first-pinch-roller rotational axis relative to the arm, wherein the first pinch-roller assembly (130, 160) is pivotably mounted to the film-carriage frame by the arm so the first pinch roller (131, 161) is pivotable relative to the first pre-stretch roller (140, 150) between an engaged position in which the first pinch roller engages the first pre-stretch roller and a disengaged position in which the first pinch roller is disengaged from the first pre-stretch roller; and a first biasing element biasing the first pinch roller to its engaged position; and a wrapping-assembly actuator operably connected to the wrapping assembly to move the wrapping assembly relative to the guide. a wrapping-machine frame; a guide mounted to the wrapping machine frame; a guide actuator operably connected to the guide to move the guide vertically relative to the wrapping-machine frame; a wrapping assembly mounted to the guide and comprising a film carriage, the film carriage comprising: a film-carriage frame; a first pre-stretch roller (140,150) rotatably mounted to the film-carriage frame; a first pinch-roller assembly (130, 160) comprising an arm (132a, 132b) and a first pinch roller (131, 161) having a first-pinch-roller rotational axis (RA 131, RA 161), wherein the first pinch roller is connected to the arm so: the first pinch roller is rotatable relative to the arm about the first pinch roller rotational axis; and the first pinch roller is pivotable relative to the arm to pivot the first-pinch-roller rotational axis relative to the arm, wherein the first pinch-roller assembly (130, 160) is pivotably mounted to the film-carriage frame by the arm so the first pinch roller (131, 161) is pivotable relative to the first pre-stretch roller (140, 150) between an engaged position in which the first pinch roller engages the first pre-stretch roller and a disengaged position in which the first pinch roller is disengaged from the first pre-stretch roller; and a first biasing element biasing the first pinch roller to its engaged position; and a wrapping-assembly actuator operably connected to the wrapping assembly to move the wrapping assembly relative to the guide. a film-carriage frame; a first pre-stretch roller (140,150) rotatably mounted to the film-carriage frame; a first pinch-roller assembly (130, 160) comprising an arm (132a, 132b) and a first pinch roller (131, 161) having a first-pinch-roller rotational axis (RA 131, RA 161), wherein the first pinch roller is connected to the arm so: the first pinch roller is rotatable relative to the arm about the first pinch roller rotational axis; and the first pinch roller is pivotable relative to the arm to pivot the first-pinch-roller rotational axis relative to the arm, wherein the first pinch-roller assembly (130, 160) is pivotably mounted to the film-carriage frame by the arm so the first pinch roller (131, 161) is pivotable relative to the first pre-stretch roller (140, 150) between an engaged position in which the first pinch roller engages the first pre-stretch roller and a disengaged position in which the first pinch roller is disengaged from the first pre-stretch roller; and a first biasing element biasing the first pinch roller to its engaged position; and wherein the first pinch roller is connected to the arm so: the first pinch roller is rotatable relative to the arm about the first pinch roller rotational axis; and the first pinch roller is pivotable relative to the arm to pivot the first-pinch-roller rotational axis relative to the arm, wherein the first pinch-roller assembly (130, 160) is pivotably mounted to the film-carriage frame by the arm so the first pinch roller (131, 161) is pivotable relative to the first pre-stretch roller (140, 150) between an engaged position in which the first pinch roller engages the first pre-stretch roller and a disengaged position in which the first pinch roller is disengaged from the first pre-stretch roller; and a first biasing element biasing the first pinch roller to its engaged position; and a wrapping-assembly actuator operably connected to the wrapping assembly to move the wrapping assembly relative to the guide.