Have a seat: Chris Hansen wants to show you something. On Friday, Hansen’s TruBlu streaming network ($4.99/month or $49.99/year) unveiled the trailer for I’m Chris Hansen, a documentary about and starring the Dateline legend three years in the making. That timeline is important as everyone involved wants you to know that this doc is not simply some knee-jerk reaction to how Hansen feels about A24 feature film Primetime, in which Robert Pattinson portrays the To Catch a Predator journalist. As for Primetime, well, he’s not a fan. In an interview with The Hollywood Reporter — Hansen’s first since the Lance Oppenheim film debuted at Venice…
