Vertigo.

Vertigo - what clues sequence gives about the film.

The opening of vertigo includes a womans lips, the lips are very plump which could connote sex appeal what could get her into danger.
It then pans up to her eyes, they look scared when they are moving around - looking for someone? - and very teary, then a red overlay slides up , this connotes her death could be slow and gets more painful (as the red screen goes up), also red connotes death and blood, but also passion, maybe the killer has a passion killing.
From her hey a swirling 3D form appears, the form gets bigger and changes color during the credits, when it swirls the it could mean there's a twist in the film and very mysterios, behind the swirl is an image of a finger print what connotes the mistaken identity.
the shapes could also mean the 'vertigo' of looking down when you get dizzy,
The writing credits are also very police file type - has something to do with the law? also that the killer could be an ex-criminal
it then goes back into her eyes, her eyes look more confident at the end of the trailer which could connote that she has the upper hand at the end of the film.

Vertigo - How does it confirm to the conventions of a thriller.

The opening scene confirms to the conventions excellently, thrillers usualy involve suspencefull scenes and music, mystery and doesn't give much away. the opening scenes trailer is very mysterious with the music and the shapes they also give mystery and the woman doesnt give anything away about the film