poster conventions-introduction

i am going to look at five poster from different genre to see if the convention of poster are similar despite that the films are from different genres

The five posters i am looking at are from the following films:

Avengers infinity war
 (superhero movie)













Friday the 13th
(horror)
















Paul (Comedy)

















Fantastic MR.FOX
(animated)

















Gangster squad
(Gangster genere)