Was Naruto controlled by the Nine Tailed Fox?
During his fight with Sasuke Naruto is seen to be in his Version 1 of the Nine Tails cloak. According to the Naruto Wiki, Naruto has very little control over his actions. It is not until he enters the Version 2 form of the Nine Tails cloak that he loses complete control.

This is Naruto during the fight with Sasuke at The Valley of the End in the Version 1 form:



This is the Version 2 form where he loses complete control:




  In Version 1 transformations, Naruto had only the briefest of control
  of his own actions. If he fell deeper into a rage, Naruto could slip
  into Version 2, losing himself to Kurama's negative influence and
  going berserk, requiring outside help to suppress the fox's
  chakra.