By Numbers - Jaws

Reducing films to simple figures.

1 - days of filming lost due to Robert Shaw being drunk. Before the USS Indianapolis speech, Shaw got arseholed to calm his nerves and couldn’t even speak, let alone remember his lines. The next day, he nailed the scene in a couple of takes.
2 - times Richard Dreyfuss turned down the role of Matt Hooper before giving in to Steven Spielberg.
3 - actors considered for Hooper before Dreyfuss finally accepted: Jon Voight, Joel Grey (!) and Jeff Bridges.