What is this proffesional job called?

[NiluKy]

I wanted to know what is the proffesional name of the job for like editers who make movie trailers? Like theatricle trailers and stuff for movies like Mr n Mrs smith, Lion king and those kinda movies?

[Zarxrax]

Editor.

But actually, according to an article I read, entire production houses work on trailers these days, and the average cost of producing one is $300,000.