American Gangster was on HBO and Cinemax. I know, Because I have them recorded.
HBO Never showed Frank walking with Richie at the end and talking.
Cinemax did!
I'm sure there was more, but right off the top , thats just 1 scene I can remember.
Cinemax gives what you get in the Movies and DVD, HBO gives what they want.
I said this over at the other site and I say it again. Directv is using that Mpeg2 HD stream for HBO and converting to Mpeg4. For some odd reason HBO mpeg2 stream and Mpeg4 streams of the same content doesn't match up.
I noticed it when I had FIOS and D at the same time and would watch HBO and wonder why the hell stuff was missing from the D feed of HBO.
Just like you noticed that in American Gangster I noticed that same edit in Tropic Thunder
The Scene where Osiris and 4leaf where talking about retards and acting.