Re: All Things Superman: An Open Discussion - - - - - - - - - - - - - - - - -
May not be a true trailer. The comment on the site says
"The version of this work detailed above is rated by the BBFC under the Video Recordings Act 1984 for use on any Packaged Media format (including DVD, Blu-ray and VHS). This classification may also be used when the same work is made available on Digital Video Platforms (including Video On Demand) provided that the platform is licenced to use BBFC ratings."
Might just be a teaser to be included on VoD services or something. Or it may be included with "Superman: Unbound"
I don't know much about the BBFC ratings, stumbled upon this while looking through their ratings guide for some info.