Hi! I hope this is right bcos this is how I saw Miley play it on her guitar... So here we go!
Capo 1
Verse:
D (xx0232@1)               AUh (x02220@1)oh, there you go again, talking cinematic
Em (022000@1)             GYeah (320003@1)you, you're charming, got everybody starstruck
D (xx0232@1)              AI (x02220@1)know, how you always seem to go

Pre chorus:
A (x02220@1)      Em (022000@1)     GFor (320003@1)the obvious, instead of me
ABut (x02220@1)get a ticket and you'll see

Chorus:
DIf (xx0232@1)we were a movie
AYou'd (x02220@1)be the right guy
EmAnd (022000@1)I'll be the best friend
G (320003@1)              AThat (x02220@1)you fall in love with
        DIn (xx0232@1)the end we'd be laughing
AWatching (x02220@1)the sunset
A (x02220@1)     Em (022000@1)                   GFade (320003@1)to black, show the names
G (320003@1)       APlay (x02220@1)the happy song...

D A G A

It's the same for the rest of the verses, pre chorus, chorus

Yeah yeah, when you call me, I can hear it in your voice
Oh sure, you wanna see me, and tell me all about her
La la, I'd be acting through my tears

Guess you'll never know that
I should win an Oscar for this scene I'm in

If we were a movie, you'd be the right guy
And I'll be the best friend that you fall in love with
In the end, we'd be laughing
Watching the sunset
Fade to black, show the names
Play the happy song

Bridge:
A (x02220@1)                                  EmWish (022000@1)I could tell you there's a twist
                          GSome (320003@1)kind of hero in disguise
                             EmAnd (022000@1)we're together it's for real, believe it!
A (x02220@1)                      EmWish (022000@1)I could tell you there's a kiss
                                           GLike (320003@1)something more than in my mind
            AI (x02220@1)see it could be amazing

ChorusX2

Outro:
A (x02220@1)                               DPlay (xx0232@1)the happy song