Can we possibly agree that he has the 'potential' in him, like a seed waiting to germinate, but he is not enlightened?
In the film, Dilgo Khyentse Yangsi says himself that he is not enlightened. How does he say this? He says that he has to stop being a little boy and attain enlightenment. If he is the reincarnation of the previous Dilgo Khyentse, what does this mean? Because most Tibetan Buddhist practitioners would assert that Dilgo Khyentse was enlightened.
There are several possibilities: Dilgo Khyentse was not a high tulku but was said to be a tulku who attained great awakening through his own efforts. This could imply that he was actually a bodhisattva on the lower bhumis as a bodhisattva on any of the bhumis appears to be a fully enlightened Buddha to beings not on the bhumis. Another possibility is that he is currently manifesting in a form to express and teach enlightenment to us. In this scheme he wasn't really the arrogant little boy that he said he had been for a while in the film but had manifested that in order to demonstrate imperfection and to lead beings to enlightenment.
It is not unusual for younger tulkus to manifest activity like this. In "Saint in Seattle", HE Dezhung Rinpoche says that he was basically an ordinary boy until he was about 15 years old and then he decided to get really serious about Dharma practice. After that, his life and activity unfolded.
_________________Kirt's Tibetan Translation Notes
"Only you can make your mind beautiful."
HH Chetsang Rinpoche