United Kingdom, Sept. 10 -- Jessica Chastain will "always regret" not meeting Robin Williams when she had the chance.

The 48-year-old actress received her life-changing scholarship to Juilliard from the late legend - who died aged 63 in 2014 - and she has recalled a time she could have approached him to introduce herself, but waited too long.

She told Extra: "My friends worked with him, and I sent him letters and a thank you card. There was one time I was in a restaurant, and it was like a director's meeting.

"It was many years ago, and I was telling [the director] this story, the Robin Williams scholarship, and no joke, he walked into the restaurant and sat down at, like, a table next to me that was already filled with people and star...