I agree with Ristol as well, but I think it was a combination of being faded (his eyes look pretty shot) and him acting up for the benefit of the camera people. Pac was definitely hyped up and was talking over Richie Rich and was basically in his own world there… Shock G was right when he said that Pac wore masks and that a lot of times he wasn't happy (though he was meaning on Death Row) and I think you see it a lot in this clip. He's clowning around, sure, but there's an undeniable undertone of anger present as well...
Speaking of which, there was the major flaw in the documentary. Now Shock G is a cool cat who has always held it down for Pac, and we have spoken previously, but he was just flat out wrong about the God Bless the Dead shit. Yeah Pac had alternate plans, but the song was a tribute and not a diss (Notorious BIG wasn't from Hollis Queens, part of double aught, etc) and Shock helped to perpetuate the stupid alive / 2pac shot Biggie rumors. I wish that they had just edited that down to remove all the doubt.
The shooting range footage was extraordinary, as was the high school interview. Although he came across a little effeminate and a little ideological there, what he said was the foundation to his music throughout his career. The shooting range reflected the Strictly 4 My N.I.G.G.A.Z. Pac to the fullest. Funny how he wasn’t such a good shot for having all that heat though lol… Overall this documentary was probably the best project in terms of letting you know who Pac was, rather than someone TELLING you who he was to earn their own meal ticket. I was kind of hoping for a Thug Angel narrated by Pac for Resurrection instead of getting footage that most of the video collectors already had.