It's unclear what documentary Spears was referring to since her post came days after FX on Hulu's Controlling Britney Spears and hours before Netflix's release of Britney vs. Spears. "It's really crazy guys ... I watched a little bit of the last documentary and I must say I scratched my head a couple of times," Spears posted on Instagram Monday night. "I really try to disassociate myself from the drama !!! Number one ... that's the past !!! Number two ... can the dialogue get any classier ??? Number three ... wow they used the most beautiful footage of me in the world !!! What can I say .. the EFFORT on their part."