Easy-to-access data/knowledge techniques supported by the Internet allow us to try a great variety of new applications. However, this trend should be balanced by easy-to-understand data/knowledge techniques. In this paper such techniques for a multimedia representation of matrix computations based on ”filmification” of application methods and data are considered. The multimedia representation is related to special-purpose pictures and animations rendering intermediate/final results of computation and schemes of corresponding computational methods. To support rendering data, a multimedia interface and matrix filtration and matrix scaling techniques are used. To support rendering computational schemes, a film technology is used. Within the framework of this technology, self-explained series of stills presenting computational schemes, an interface supporting formula attachment to still structures, a subsystem for automatic program generation as well as WEB-based environment are discussed.