When shooting on location, filmmakers occassionally use false names for the movies they’re working on in hopes of discouraging crowds of gawkers and too much public hype. Reddit user Daidalos5 images how the promotional posters for films such as Superman Returns and The Avengers may have appeared if they had retained their production titles.
(Shout-out: Capes on Film)
(Image: poster for Rory’s First Kiss (a.k.a. The Dark Knight))