imperialscum said:
Another example, in his interviews Kershner always told this story about "I love you" "I know". He stated that they were repeating "I love you too" over and over again and that he didn't like it and then Ford just said the new line at some point. While apparently Ford was the one who didn't like it when reading the script and came to Kershner before they shot the scene with "I know" suggestion and then they did it.
He credited Ford with that in some, apparently.