When he called you Sunset Boulevard why did you call him Los Angeles? What happened here, what really happened here? Why did you leave a place where we´ve been happy? Okay, mom, I´m back here, and I let you know what I find...

...thoughts like this, talking to his mother, passing his mind while Mike drives along the freeway towards this "megapolis". He remembers all those wonderful people he met, when he was a kid living on Sunset Boulevard, before he and his mother moved to Houston.