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
