India, Oct. 12 -- Woody Allen is said to be deeply affected by the death of his former girlfriend, Diane Keaton, who passed away in California at 79. The 89-year-old filmmaker is "distraught" over the news, according to People.

"He is extremely distraught and surprised and upset," a source told the outlet. "It makes him think of his own mortality," the source added.

Keaton's health had declined rapidly before her death, and the source said Allen had no idea she was unwell. "He was surprised," the source said.

Allen and Keaton first dated in 1969 when she starred in his Broadway play Play It Again, Sam. Though their romance ended after a few years, they went on to make several movies together, including Annie Hall in 1977, which earned ...