Natalie Portman dislocated her rib while shooting Black Swan and had to give up her trailer so the low budget film could afford a medic for the rest of shooting.
For 'Deadpool' (2016) Ryan Reynolds paid $10,000 of his own money for the right to wear a shirt with The Golden Girl’s Bea Arthur on it.
The cat in "The Godfather" was a stray.
In every scene of Fight Club, there is a Starbucks coffee cup.