Woody Allen described a "drearier world" without ex-girlfriend and longtime friend Diane Keaton .
Allen wrote an essay about the movie star after her death at age 79.
"It’s grammatically incorrect to say ‘most unique,’ but all rules of grammar, and I guess anything else, are suspended when talking about Diane Keaton," he wrote for The Free Press . "Unlike anyone the planet has experienced or is unlikely to ever see again, her face and laugh illuminated any space she entered."
Allen and Keaton first met while working on "Play it Again, Sam" in the early 1970s. Their romantic relationship only lasted a few years, but the two remained close friends for the next six decades.
The actor noted the two were both shy but eventually shared lunch together during rehearsal.
"That was ou