The film 'The Good, The Bad and The Ugly' is typical of it's genre by the following conventions

I) Iconographies - Being a western, there are many visual symbols we can decode. The setting is important, in this case the cactus filled desert is the most common setting for a western film, the duel we actually see in the 5 minute clip takes place in a graveyard in a very baron wasteland for example. The second major code in your generic western film is the clothing and accessories in general to the characters. You'll find your generic western cowboys wearing boots, ponchos and stetsons and a holstered six shooter, most likely accompanied by a horse. These are very common symbols although in modern film, people class the western as something else the typical narrative of a western has changed.

II) Narrative - People now argue that western films do not need to take place in western america, like previously thought and the time isn't necessarily the same. Most westerns follow the conventions of a character from the East, or someone from 'out of town' travelling west in search of something or aiming for redemption. The goo, The Bad and The Ugly really supports that idea, but some could argue films like 'The Book Of Eli' or 'Die Hard'

III) Representations

IV) Ideologies