Tandem solar cells based on hybrid organic-inorganic metal halide perovskites have reached efficiencies up to 28%, but major concerns for long-term stability and the presence of Pb have raised interest in searching for fully earth-abundant, intrinsic chemically stable, and non-toxic alternatives. With a direct band gap around 1.8 eV and stability in air up to at least 500°C, BaZrS3 is a promising candidate. This work presents the first approach of synthesizing a thin-film of such compound by sputtering at ambient temperature with a subsequent rapid thermal process. Notwithstanding the short fabrication time, the width of the XRD diffraction peaks, and the energy and distribution of the photoluminescence response show comparable crystalline quality to that from bulk synthesis methods, which instead needed reaction times of hours. Good crystallization required temperatures around 900°C, which could potentially hinder the integration into a solar cell.