Iconography, mise-en-scene, and genre are important aspects of visual storytelling. Iconography refers to the objects and symbols that are commonly associated with and help identify a particular genre, like cowboy hats and horses in Westerns. Mise-en-scene describes the visual design elements of a film or theater production, including cinematography, stage design, and storyboarding, that come together to tell a story in a visually artistic way. Genre establishes expectations for the types of objects and symbols an audience will see based on conventions of that genre.

2. Iconography is an important aspect of genre. We expect to
see certain objects on screen when we see a particular
genre, for example, in a Western, dusty lonely roads, saloon
bars, cowboy hats and horses, jails, sheriffs badges, guns,
etc..
Mine en scene is an expression used to describe the design aspects of
a theatre or film production, which essentially means "visual theme"
or "telling a story"—both in visually artful ways through
storyboarding, cinematography and stage design, and in poetically ...
Binary opposites is a pair of related
terms or concepts that are opposite in
meaning.
The relationship between
texts, especially literary ones.

3. An ideology is a world view, a system of values, attitudes and beliefs
which an individual, group or society holds to be true or important; these
are shared by a culture or society about how that society should function.
Cross Media Convergence is really a Business Studies term and refers to companies
coming together vertically or horizontally (or both). The example often cited in
exams is of Working Title making use of its parent company(s) to gain access to
bigger stars and a better distribution network for their films
The process or state of converging
Ontology is the philosophical study of the nature of being, becoming, existence, or
reality, as well as the basic categories of being and their relations
A low-budget film of inferior quality made for use as a supporting
feature in a cinema programme.