Batman-Superman

http://www.dccomics.com/comics/batman-superman-2013/batmansuperman-1
There hasn't been a big budget movie featuring these two characters yet. BS or SB?
https://www.youtube.com/watch?v=WPZW8_ID-l4

http://www.dccomics.com/blog/2013/07/09/batman-and-superman-team-up-atop-comic-book-sales-charts-to-dominate-june-as-dc

http://en.wikipedia.org/wiki/Superman/Batman, http://www.youtube.com/watch?v=F90nxOlsm1s

http://www.insidethemagic.net/2013/07/universal-studios-theme-parks-open-doors-to-new-film-franchises-in-multi-year-partnership-with-legendary-entertainment

https://www.youtube.com/watch?v=WeWpCJruFlw&feature=c4-overview-vl&list=PLimhOT0Avg-Q1zzIFxw0DOcBmDcat4bnK
Even back in early June, people were wondering about this potential element for a new movie.
http://screenrant.com/henry-cavill-justice-league-batman-superman-man-steel-2

It happened with Iron Man and The_Avengers, so there are always new possibilities in future movies.

http://jfvrinfo.blogspot.ca/2013/06/the-superman-mythology.html

Robots and Monsters, etc.

http://en.wikipedia.org/wiki/Pacific_Rim_(film)
Ancient monsters vs futuristic giant robots and other machines.
http://www.vulture.com/2013/07/pacific-rim-primer-godzilla-mecha-kaiju.html,
https://www.youtube.com/watch?v=_ssjFfDi6mc

Gappa 1967
http://www.youtube.com/watch?v=6gRiCtrGk80,
http://godzilla.wikia.com/wiki/Gappa_the_Triphibian_Monster,
https://www.youtube.com/watch?v=RV6EF7mXmkY

http://www.thestar.com/entertainment/movies/2013/07/05/pacific_rims_guillermo_del_toro_is_a_monsterloving_pacifist.html

http://en.wikipedia.org/wiki/Reptilicus,
http://www.youtube.com/watch?v=Ty98XOw92l8

http://en.wikipedia.org/wiki/Cloverfield,
http://cloverfield.wikia.com/wiki/Cloverfield_Monster,
http://collider.com/drew-goddard-cloverfield-sequel-interview

Apparently no laxatives were used during the production of these movies.
However, some scenes may cause a tremendous cathartic release.