A method and a mobile device to display a specific image at the highest layer of a screen are provided. The mobile device displays moving images at a first region of a screen and, if an event to perform a function in a second region of the screen is received, determines a second region for displaying a specific image associated with the event. The mobile device determines whether the second region is overlapped with the first region. If the second region is overlapped with the first region, the mobile device determines a third region not overlapped with the second region. Thereafter, the mobile device displays the specific image at the second region and displays the moving images at the third region.