Here is the script we used in the final version of our short film:
Alex walks to locker, opens it, then receiving a text message, he takes the phone out of his pocket, read the message and puts it back into his pocket. He then walks through a door and down a corridor to meet Alice.
Alex B: …you wanted to talk?
Alice: Well…It’s just that
Alex B: Well…
Alice: Shall we see 'Back to the Future' or 'Buried' tonight?
Alex B: I don’t care… 'Back to the Future'?
Alice: 'Buried' it is!