These cards read: "The following PREVIEW has been approved for ALL AUDIENCES by the Motion Picture Association of America," and often include the movie's MPAA rating G,PG,PG-13,R.
This signifies that the trailer adheres to the standards for motion picture advertising outlined by the MPAA, which includes limitations on foul language and violent, sexual, or otherwise objectionable imagery.
In April 2009, the MPAA began to permit the green band language to say that the trailer is approved for "appropriate" audiences.
This means that the material in the trailer will be appropriate for audiences in theaters, based on the content of the movie they have come to see.
A yellow band is a yellow graphic that reads "The following PREVIEW has been approved ONLY for AGE-APPROPRIATE internet users by the Motion Picture Association of America".
