Estranged ©.

Dustin Hoffman's performance as "Ratso" Rizzo is ranked #7 on Premiere Magazine's 100 Greatest Performances of All Time.
Dustin Hoffman kept pebbles in his shoe to ensure his limp would be consistent from shot to shot.
Before Dustin Hoffman auditioned for this film, he knew that his all-American image could easily cost him the job.
To prove he could do it, he asked the auditioning film executive to meet him on a street corner in Manhattan, and in the meantime, dressed himself in filthy rags.
The executive arrived at the appointed corner and waited, barely noticing the "beggar" less than ten feet away who was accosting people for spare change.
At last, the beggar walked up to him and revealed his true identity.
Teenage girl fans of The Graduate would scream when they saw Dustin Hoffman filming in the streets of New York, even though he was in his filthy costume as Rizzo.
According to Dustin Hoffman himself, the taxi incident *wasn't* scripted.
During an L.A. Times interview in Jan. 2009, he said that the movie didn't have a permit to close down the NYC street for filming,
so they had to set-up the scene with a hidden camera in a van driving down the street, and remote microphones for the actors.
After 15 takes, it was finally going well, but this time, as they crossed the street, a taxi ran a red light.
Hoffman wanted to say "Hey, we're SHOOTING here!", not only from fear of his life, but also from anger that the taxi driver might have ruined the take.
Instead, being the professional that he is, he stayed in character and shouted "Hey, we're WALKING here!" and made movie history.
Jon Voight also backs up this version of the incident, saying that seeing how well Hoffman was handling the situation, he likewise stayed in character.