1. A method of generating a movie-in-short (MIS), comprising: extracting metadata, in which predetermined points of time of content are recorded, from an inputted multimedia file which does not include the MIS; generating a list of at least one MIS by using storage addresses of the points of time or reproduction points of time, which are indicated by the extracted metadata; and storing, by a storage unit which is a hardware component, the list; and reproducing a summary of the content by selecting partial contents, in the content, corresponding to the reproduction points of time in the generated list of MIS and reproducing the selected partial contents; wherein the extracting of the metadata comprises extracting metadata, in which predetermined points of time of the content are recorded, from a header area of a multimedia file that includes the content.