I'm not really a music person, but here goes!
Chiisaki Mono (A Small Thing) sung by Asuca Hayashi
Her voice is amazing. ^^
You can hear it here with lyrics translated into English in the subs. It's my favorite Pocket Monsters movie ending song. Heck, even the dubbers kept this in and they constantly go out of their way to kiddify and Americanize the show.
It's a beautiful song. I uploaded it for you guys to hear! ^^ There's a little bit of dialogue at the beginning before the actual song starts, but it's not that much, trust me. The song starts a short while after Jiraachi's 'kimi o zutto miteruyo... zutto... zutto!'
It always really touches me.
YouTube - Chiisaki Mono
I hope you'll enjoy it! ^^
Lyrics:
I watched you quietly
A small thing, your sleeping face
Just a few wrinkles gather on your brow
If you're having a nightmare, open your eyes
That summer when I was afraid of the water
is coming back to me now
With someone pushing at my back, I was finally able to swim
It's as if it was only yesterday
I hear a voice
It points to the road I must take
Alone within the turning, flowing wind,
I am singing
A small thing, that's me
It's me, undoubtedly
In the mirror there is only hopelessness
But tomorrow I won't lose to anyone!
And I am, little by little,
Returning to the time I was young
I sing, without even knowing the meaning, a love song
To the day that you praised me
If I look to the sky
My voice will rise up
And you too, in the flowing wind,
Should be whirled up there
I hear a voice
It points to the road I must take
Alone within the turning, flowing wind,
I am singing
The important things are already close by; I realize that now...
If I look to the sky
My voice will rise up
And you too, in the flowing wind,
Should be whirled up there
I hear a voice
It points to the road I must take
Alone in the turning, flowing wind,
I am singing