In FFX, if you purchase all the Movie and Music Spheres, you can purchase 3 additional tracks. I think you're making things up, kikimm, but no worries! CKs don't have to know this stuff. Allow your handy dandy servant to inform you.

There are no bonus FMVs to purchase in FFX, and there are no extras in FFX-2 (no music or FMVs).

They are:
Lulu's Theme (plays during the certain visits in the Cavern of the Stolen Fayth)
Wakka's Theme (plays at certain parts during the first visit to Luca)
Hum of the Fayth (in a flashback during the game, Auron mentions something to Tidus, occurs after the Wendigo battle under the ice)

Here is where you hear the Hum of the Fayth. Script, of course.

Rikku
"Friends, huh?"

Wakka
"Man... How can you all act like nothing's wrong?"
"Must got nerves of steel or something."

Lulu
"You're too edgy. Listen to the hymn and calm down."

Tidus
"Is that coming from the temple?"

Yuna
"Yes, it is Yevon's gift. It soothes the hearts of the faithful."

[Tidus goes to speak to Auron]

Auron
"Jecht used to sing this song..."

Tidus
"Yeah, over and over."
"But not this good, that's for sure."

Auron
"Another trait you share."

Tidus
"What, you were listening?"

[Screen goes white. We're back in Zanarkand, where Tidus is humming. Auron's in the background, listening; Tidus is unaware of his presence]

Tidus
"Eesh.. Can't I get a little privacy?"

Auron
"Your singing reminded me of Spira."