A system for controlling parameters of polymeric film in a continuous melt forming apparatus (100, 200), the system comprising: an extruder configured to create a polymeric melt; a die in communication with the extruder for receiving the polymeric melt from the extruder, the die having a gap extending transversely along a discharge end thereof and plurality of regulators positioned transversely along the die proximate the gap for selectively regulating the size of the gap; a cooling cylinder located downstream of the die in a machine direction, the polymeric melt extending from the die to the cooling cylinder; at least one haze generator located proximate the gap and upstream of the cooling cylinder, the at least one haze generator being configured to create at least one haze lane (14, 14', 14") in the polymeric melt at a respective origin point (P1, P2, P3) proximate the gap during production of the polymeric film; a haze sensor system being located downstream from the gap in a measuring location of the haze lane (14. 14', 14") where the polymeric melt has been quenched to form the polymeric film, the haze sensor system being configured to locate a transverse point (LP1, LP2, LP3) for the respective haze lane (14. 14', 14") in the polymeric film at the measuring location; and the haze sensor system being in communication with the plurality of regulators to adjust the size of the gap based on a correlation of haze lane (14, 14', 14") position at the respective origin point (P1, P2, P3) and the respective transverse point (LP1, LP2, LP3) at the measuring location, characterized in that the at least one haze generator is moveably positionable transversely along the die. an extruder configured to create a polymeric melt; a die in communication with the extruder for receiving the polymeric melt from the extruder, the die having a gap extending transversely along a discharge end thereof and plurality of regulators positioned transversely along the die proximate the gap for selectively regulating the size of the gap; a cooling cylinder located downstream of the die in a machine direction, the polymeric melt extending from the die to the cooling cylinder; at least one haze generator located proximate the gap and upstream of the cooling cylinder, the at least one haze generator being configured to create at least one haze lane (14, 14', 14") in the polymeric melt at a respective origin point (P1, P2, P3) proximate the gap during production of the polymeric film; a haze sensor system being located downstream from the gap in a measuring location of the haze lane (14. 14', 14") where the polymeric melt has been quenched to form the polymeric film, the haze sensor system being configured to locate a transverse point (LP1, LP2, LP3) for the respective haze lane (14. 14', 14") in the polymeric film at the measuring location; and the haze sensor system being in communication with the plurality of regulators to adjust the size of the gap based on a correlation of haze lane (14, 14', 14") position at the respective origin point (P1, P2, P3) and the respective transverse point (LP1, LP2, LP3) at the measuring location, characterized in that the at least one haze generator is moveably positionable transversely along the die.