Ferromagnetic and perovskite-like thin films (<1 mu m) of La1-xCaxMnO3+delta have been routinely prepared by heat treatment of an amorphous La-Ca-Mn precursor. The precursor was electrodeposited cathodically in the absence of oxygen and water onto polished silver substrates from a nonaqueous solution of the components＇ nitrates. Analysis by X-ray diffraction and SQUID magnetometry shows these materials exhibit the appropriate structural and magnetic phases indicative of colossal magnetoresistance.