Characters
I'm a star. I'm a star, I'm a star, I'm a star. I'm a big, bright shining star.
— Dirk Diggler ‧ Boogie Nights

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
He repeats it like a chant, as if saying it enough times will make it true. The stacked 'star' turns confidence into a pep talk he gives himself. It's bold, a little desperate, and completely sure of its own shine.
Context reviewed