We propose a crystalline film growth technique for organic materials called vaporized film deposition (VFD). This method consists of two simple step: vapor-depositing a microcrystalline film on a substrate, then transferring it on another substrate by heating in vacuum. In this study, we used a cyano-substituted pi-conjugated oligomer, 5,5'-bis(4'-cyanobiphenyl-4-yl)-2,2'-bithiophene (BP2T-CN). By placing the two substrates with a spacing of < 1 mm at 250 degrees C, the BP2T-CN film was vaporized and transferred into a polycrystalline film composed of single-crystal grains with a size of 5-20 mu m. This method enabled us to fabricate homogeneous polycrystalline films under controlled thickness. Consequently, we observed optically pumped lasing from this polycrystalline film based on light confinement in each grain.