From:
http://www.popisms.com/TelevisionCommercial/84180/Dolce-and-Gabbana-Commercial-for-Dolce-and-Gabban.aspx
This page also has a transcript (search for [MATTHEW MCCONAUGHEY: Sorry.]):
http://transcripts.cnn.com/TRANSCRIPTS/1311/06/sbt.01.html
Don't know if this is the official transcription. I've made a few changes, additions and comments in square brackets.
__________
Sorry... [We, uh...]
Sorry I'm late. Couldn't be helped. Got here as fast as you could. [CNN transcript says 'Ran late']
How much time do you have?
Car to the airport picks me up at 8. [CNN transcript says 'picking']
London?
Sydney.
Ah, well, we got time to do this once. [Instead of 'we', I think I hear 'I only', but not very clearly]
Nice car. Is it yours?
Nah, it's a loner. Thought it fit the role. I like your dress.
It likes you back.
I think I saw it in a magazine. You looked happy.
On a gondola?
No, outside a cathedral. ['Nah']
I was acting. Is this where you live? ['This is where you live?']
No, this is where you tell me to get lost. On the roof.
I miss this city. Even when I'm here I miss it. It's always changing.
Yeah, like this building. It used to be over there.
You always this serious?
Only before a love scene.
Yeah, we didn't need anything back then.
We needed everything back then.
But if we could go back, would we?
If we did, could we make it stick?
[Right,] We should go back.
Yes, we should.
You see, that's all you need to say. [I just hear 'See']
Dolce & Gabbana. The One.
__________
I can see why you're finding parts of it quite hard to understand – some of the speech isn't that clear even for a native English speaker (I speak British English).