Abstarct: The drop impact onto liquid film is an interesting phenomenon in fluid mechanics and industrial applications, including spray coating, cooling processes, and inkjet printing. The impact of a drop on a liquid film surface creates an interaction between the drop, the fluid, and the surface. Therefore, understanding this interaction is very important. Although many investigations have studied the case of Newtonian fluids, the effects of the fluid rheological properties, especially the elasticity, fluid film thickness, and the nonlinear viscometric functions, have been less considered in the literature. In this study, the impact of a drop onto the same liquid film is investigated numerically and experimentally. The Boger fluid is considered as viscoelastic fluid in all experiment cases. In the experimental study, the different viscoelastic Boger solutions were made by dissolving polyacrylamide powder in a water/glycerin solution. The impact of a drop on fluid film is recorded using a high-speed camera. Numerical simulations can complete the previous studies and the present experimental observations. By using the finite volume method (FVM) and the volume of fluid (VOF) technique, the governing equations are solved numerically. In this study, the Oldroyd-B and Giesekus model are used as the constitutive equation for the viscoelastic phase. The effects of flow parameters, including the Weissenberg number, Reynolds number, the film thickness, the Bond number, and the Weber number on the evolution of the crown are investigated. The results indicate that the fluid elasticity and surface tension forces have a significant effect on crown dimensions. The fluid’s elasticity can increase the crown dimensions for large values of the Weissenberg number. Whereas, at lower values of the Weissenberg number the crown dynamics can be complex. The effect of fluid film thickness on the crown dynamics depends on the Weissenberg number. The impacts of viscosity ratio and mobility factor on crown dynamics are also considered.