It's a Mad, Mad, Mad, Mad World was heavily promoted as being presented in Cinerama and was projected on curved screens in theaters outfitted for the process. But the movie was actually shot, like any other widescreen film, using a single-lens camera. Movies branded as having been shot in Cinerama continued to appear after 1963, but as with It's a Mad, Mad, Mad, Mad World, this merely meant they were projected onto Cinerama screens. These screens started to come down at the end of the '60s in the United States. European Cinerama sputtered along for a couple more years, long enough to feature a pair of films about great composers, including the Edvard Grieg biopic Song of Norway, starring Florence Henderson.