This is the opposite of a U.S. Marshals, in which a film is made to look much better/funnier than it actually is, suckering you into wasting your time on it. Many comedies are guilty of this tactic.
Opposite example films: U.S. Marshals (1998), Paul Blart: Mall Cop (2009), The Clearing (2004), A History of Violence (2005)
Sample use of the phrase: Yeah, that movie District 9'd me. I totally didn't see that coming from the trailer, but it worked!
I kept hoping it would pull a District 9 on me, but nope, the only good things about it were in the trailer.
I thought <MOVIE TITLE> was going to District 9 on me, but instead we got US Marshall'd.
Movie: A movie that came out in 2009 showing the events following the arrival of the prawns in District 9. It shows the behavior of prawns, which is very, VERY similar to humans, especially with the aliens using slang and swear words. (Actually, these Anthropomorphic actions of the alien prawns are very satisfying to the furry mind, so if you are a furry, I recommend this movie.)
According to some articles on the internet, the movie District 9 apparently rose from the ashes of the Halo movie, seeing that the Halo movie was canceled. The producer and director decided to make a lower budget film after the Halo project died, so district 9 was born.
The funny thing is, in the middle of the District 9 movie, there is a scene with an alien and a human battling they're way through multiple enemies using foreign space weapons. Probably a little shout out to the Halo series, since the Halo bit didn't turn out as expected.
Prawn 2: I know, this place is a dump. I have to search through the trash every day to find something to eat, cause we ran out of cows a month ago.
Jerry: "Nigga im from that 213 ride up on niggas cuz im used to that District 9 shit."
Human 2:Noooo! Thats District 9! No humans can sit there.