Introduction to different types of trailers

I am going to be looking at two different films, one film is in the genre of horror called

'A Quiet Place'

and the other is a comedy called

'Just Go With It '

I will be looking at the similarities and differences of these two films. 

For each film I have chosen above there are three different types of trailers which people can find and watch, there is a theatrical trailer which is the longest trailer about the movie, production companies will release these trailers about a month before the movie is released.
A teaser trailer which is 30 seconds, these are very short and will show the audience only a small clip not giving too much away about the film and producers will release these very early on, about a year before the movie is released, whilst production is still happening.
There is also a TVspot trailer, this is shown through adverts on the TV so it is also very short.

Looking at these different types of trailers will help me with my coursework as I will understand more about how to make a trailer.