2. conventions
Usually set in the future or an alternate timeline that contradicts historical
records.
Set in space or an alternate earth or planet.
Very futuristic technology or new technology.
Futuristic props and costumes.
Film techniques such as special effects.
Close ups of future tech and equipment
Conflict between good and evil.
3. Narrative content
The use of new technology and scientific principles allows there to be a easily
crafted dialogue about these new ideas. And builds the technological and
scientific way viewers imagine the film.
Conflict in sci-fi films is used to inform the viewer of the particular relationships
between different cultures or species.
4. Filming techniques
Filming techniques such as special effects are used in filming so that advanced
ideas that are hard to capture through normal camera filming techniques and
sets can be capture through computer generated images. It also means that ideas
are not limited for the final product.