Saw 1
The film title appears in the end of the trailer at 1:47. Having the title at the end makes the audience know the name as having it in the beginning the audience would forget.
No one is credited in the trailer which reinforces the convention that star actors are not needed in the genre of horror. As for the stars i do not know any of them and do not know there names.
The genre that i think it is with no sound is Horror as there are multiple jump cuts. Close ups on the face of the characters of them being scared, terrified, horrified and petrified. In addition to that the text which appear are words such as madman, voyeur and psychopath.
The trailer is 1:57 which means it is full theatrical trailer.