Come on it's obvious..

Terminator

'Apocalypse Now (Redux)' – to kill time

'The Man With Two Brains' – to get a sense of what it could be like to ruin Kathleen Turner ; AND to learn the words of 'Bamboo Tree' and 'Duke of Earl'

You kant!

Oh! OR, 'Babyface@ – AND, to quote thereof…. "Oh my god! I can't believe we're actually f*cking!"

2nd "A Matter of Life and Death"

Angel Eyes

How exactly are we going to watch these films on desert island anyway?

blade runner

or Castaway to help me survive with only a volleyball to keep me company

Heat
mainly for this

The Beach? or the Third Man

I can't believe no-one has yet suggested….

Debbie Does Dallas.

It's got to be a porno, it doesn't matter which, as the story's always the same in them all, it would just give you something to jerk off to.

To hell with all you sheriffs and deputies and all who gave birth to you!
Hey, everybody, look! Look! He's giving him the filthy money!
Judas!
You've sold my hide!
But you won't enjoy any of that money, not a penny.
If there's justice, that money will go to the undertakers!
Every penny of it. You know who you are?
You want to know whose son you are?
You don't, I do. Everybody does.
You're the son of a thousand fathers!
All b****** like you!
And your mother? Your mother is best not to talk about…..
You b******!

Grosse Point Blanke.

+1 The Life of Brian

Citizen Kane
2001
Apocalypse Now
Usual Suspects
Big Fish
Bladerunner

can't do it with just one film.

Lock,Stock and Two Smoking Barrels

To remind me of home

Having dipped into BBC3, I had nearly forgotten just how good a film V for Vendetta is – and if nothing else it would remind me of what was happening in dear old blighty while I was on the island!

it doesn't matter which

Ohh it does – you need the one with the best money shot…

Blues Brothers – car chases, comedy, James Brown, Carrie Fisher & a cracking soundtrack

Napoleon Dynamite

Snatch-so many one liners.I've watched it god knows how many times and i still laugh out loud at them.

Seven

The Big Silence

Well my initial thoughts were Fight Club and Amelie, but they've been mentioned, so.

We go with my actual choice (above these) of The Princess Bride. It's the only film I've seen so far that I could happily watch all over again right after it's finished.

…which is an important consideration under the described circumstances I think.

Zoolander – just to remind me how much I'm not missing anything and to laugh my ass off

A further vote for A Matter of Life and Death

Zulu Dawn

or

The Italian Job (original)

Papillon

Earthed 2 or if its a proper film city of god

Muppets Xmas Carol 8)

Hero

Trading Places.

American History X

blonds on fire…

Point Blank

American Flyers 😆