The source, who asked that their name not be used, says that Disney "recently requested that a Brave trailer [be] created to show in front of Cars 2."
The team at Pixar "are in crunch time to get the trailer animated so it can go through lighting, rendering, editing, etc." and meet the deadline to attach it to prints.
While this may not sound like big news—Pixar usually gives us a taste of their next film with each release—this is the first we've heard about a Brave trailer.
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