In both countries many universities have doctoral hats for persons who have completed a PhD or similar degree. These usually resemble top hats and must be worn with white tie. Like other hats, they are not generally worn indoors, but they may be presented on a table. Events where the hat and white tie are worn include thesis defences, post-doctoral parties, ceremonial conferments of degrees, opening ceremonies and other formal ceremonies related to the university. At some universities, a doctoral ring is awarded together with the hat. In the Ingmar Bergman film "Wild Strawberries", one scene shows the conferral of a Jubilee doctor degree on the main character at the University of Lund, which includes the presentation of such a hat and ring. At the University of Helsinki a cape and a sword are commonly worn with the doctoral hat. Students of the student organization "Limes" may also be seen wearing a black cape.