The Difference Between Teaser and Theatrical Trailers

The difference between teaser and theatrical is simple:

Teaser: A teaser doesn't give much detail about the film itself, it normally only contains a few clips. Often these clips are filmed just before the real footage is filmed. You are not in a position to be able to get an insight into the storyline of the film, just perhaps the genre and potentially the style. 

Theatrical: On the other hand, the theatrical gives the audience an insight into the storyline and gives many details as to what the audience can expect from the film. There is often a lot of dialogue and a larger chunk of the film is shown. The footage is real film footage and is normally released shortly before the release of the film. 

I grabbed all the frames from the trailer and put them together chronologically on iMovie. As you can see by this comparison of trailers from The Hunger Games, the frames used in the Theatrical are vastly different to those in the teaser. 

As you can see, the teaser consists of just one location with the main character - The footage resembles a couple of the key moments of the film and gives the audience an onsite into the character of Katniss Everdeen, but the storyline is unclear. The theatrical on the other hand has around 11 locations and is driven by dialogue. The frames are roughly chronological but stops about half way to two thirds into the film, so that the ending is not given away.