The film insert molding is a good manufacturing process for a plastic article with aesthetic appearance or functional surface. When a thermoplastic polymer melt is injected into the cavity and onto the film, the film will experience high temperature and high stress and be eventually deformed. The typical polymeric film can be deformed complying with the cavity surface conformally. If a film, however, is brittle like thin wood laminate or is coated with brittle layer like oxides or with narrow metal pattern, etc. some defects like cracks or necking appears on the film during the forming or molding process. In this study, the deformations of the wood films, ranging between 100um and 500um in thickness, were investigated during the thermoforming and injection molding process. Due to the growth ring pattern of the wood, the wood film has good mechanical strength to the direction of growth ring, but low mechanical strength to the normal direction. This low mechanical strength to the normal direction of the growth ring pattern restricts the wood film to be used only for parts without steep bending or curved surface. For the wood film, once a crack is initiated at a certain location, then the film cannot bear the load anymore during the forming or molding process. A nonwoven fabric layer was used as a supporting layer for the wood film to investigate the effect on the deformability of the wood film during the thermoforming and injection molding process. The supporting layer could distribute the load to the overall wood film and make the film be formed more without failure. The deformability of the wood film was examined depending on the thickness, density and material of the supporting layer and the mechanical properties of the wood film. Besides the nonwoven fabric, other supporting material like carbon/epoxy prepreg were also investigated for deformability and warpage considering the direction of the carbon fiber.