Abstract: A method of applying a film to upper and lower appliques of a rear slider window assembly includes providing a support structure and positioning a rear slider window assembly at the support structure, with the rear slider window assembly including spaced apart fixed window panels, upper and lower appliques extending between the spaced apart fixed window panels, and a frame portion attached at the fixed window panels and appliques. An applicator includes first and second applicating devices for dispensing a strip of film onto a respective applique. The applicator is moved to a starting position where a roller of each applicating device presses an end region of the film onto the respective applique, and then is moved along the appliques with the rollers rolling along the respective appliques to press the film onto the appliques. The film strips are cut and pressed onto the respective appliques.