[en] A new technique involving detection of both fragments associated with each fission event by two thin-film scintillation detectors is investigated to obtain information about fragment mass and energy. The functional behavior of the film response to fission fragments of specified E/M and Z is obtained by combining the specific luminescence and specific energy loss data for heavy ions. The analysis of the scintillation data gives fragment mass and energy distributions and mass-energy correlations whose main features are in good agreement with those of semiconductor detector measurements. In addition it is found that the scintillation data are capable of revealing information on the average charge to mass relation of the fragments in the symmetric region