Films which usually have teaser trailers are those have a multi-millon budgets , popular sequels or adaptations such as 'Superman' ; 'Avengers' ; 'Incredible Hulk' and Spiderman.
These films require the use of teaser trailers as they are effective in creating 'buzz' and excitement around the arrival of an anticapated film ; teaser trailers allow film fans to get a 'sneak-peak' without giving too much away a vital tool in the media industry , as film makers directors and production companies alike dont want the public see to much into their new hollywood blockbuster however they also dont want it too lose interest amongst film fans this where teaser trailers work well and are quite effective.
It is unlikely that small budget films will have teaser trailers as from a film maker point of view it just doesnt seem viable or make any sense ; because it wouldnt generate any media or public attention , it is easy to argue that teaser trailers are new within the media industry and something which came about as a result of demand for more pre film footage as films grew more and more popular throughout the 20th century.
In relation to our film it is unlikely a 'urban thriller/drama' would have the need or use of a teaser trailer ; teaser trailers are overall quite unconventional within the media industry.