The Quietus has a pair of tickets to give away to Orbital's show at the London Brixton Academy tomorrow night. They'll be supported by Delphic at the gig, as if you didn't need any more reason to answer the following question and email your answer to info@thequietus.com with Orbital in the subject box and a telephone number. No heavy breathing, we just need to call you to say where to pick up the tickets.

The track 'Planet Of The Shapes' by Orbital features a time-referencing sample from which film:

a) Planet Of The Apes

b) Total Recall

c) Withnail & I

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