LO1: The purposes, approaches and contrasts between different audio-visual promos

promotes and advertises the brand/BBC promos such as the hippo one that promote the identity of the brand 

film trailers promote music/https://www.youtube.com/watch?v=RgKAFK5djSk wizkalefa see you again used heavily for marketing since it was such a popular song.

they also inform or have dual functions that do both promote to and inform the audience.

videos can also entertain us/ film trailers 

games advert (https://www.youtube.com/watch?v=UoTams2yc0) this was a game trailer for mortal kombat 11 that released along with this song that promoted the brand. Immortal by 21 savage was made to promote the game series as it referes to it many times. 

information videos on covid.