Just because a movie is called Bang Rajan, and just because it stars someone with the first name Chumporn*, it is not necessarily pornography.
Submitted for your edification.
*Also noted, chumporn could either be a fairly banal sex romp (first set of definitions) or an extremely-disgusting-to-contemplate fetish (second set of definitions).
The former definitely exists and the latter . . . well, let me just invoke Rule 34 and leave it at that.