In The Red...

During the making of The Red Badge of Courage, legendary movie director John Huston

1) had to get MGM to advance him $150,000 to clear outstanding bookies' debts (from a total salary of $200,000 p.a.);

2) wrote the screenplay on a return flight to Mexico (for his wedding);

3) and directed the entire film from horseback.

They don't make 'em like that any more.

[Thanks to Lillian Ross (RIP)]