Teaser often create hype in media to such extent that they get leaked . '' Avengers : Infinity War '' and '' 2.0 '' prove to be such examples . The teaser ( the director 's version ) of " 2.0 " was released weeks before it was officially released on YouTube . DVD and Blu-ray releases of movies will usually contain both their teaser and theatrical trailers as special features . One of the most notable exceptions to this rule is '' Spider-Man '' , whose teaser trailer featured an unrelated plot of bank robbers escaping in a helicopter , getting caught from behind and propelled backward into what at first appears to be a net , then is shown to be a gigantic spider web spun between the two towers at the World Trade Center . This teaser was pulled from theaters following the September 11 attacks , but it can be viewed on YouTube
September 11 attacks
September 11 attacks
Teaser campaign