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The 36-year-old actress, who died on Sunday, opened up to "Sleepwalker" co-star Justin Chatwin "about a lot of things" while working together.

"This hits deep. I've had to take the day to let the idea that Hayden is not with us, wash over me," Sylvia Jefferies wrote on Instagram Monday.

The pair -- who were first romantically linked in 2018 -- went on to have a tumultuous, on-and-off relationship that included multiple alleged incidents of domestic violence.

The actress and Klitschko, who were together from 2009 to 2018, share 11-year-old daughter, Kaya.

See Vin Diesel, Meadow Walker, Jordana Brewster and the rest of the family here.

An insider revealed to Page Six that the actress suffered pain that was so bad it affected her mobility.

The two had a tumultuous on-again, off-again relationship marred by domestic violence.

Pinault Jr. and his wife, Lara Cosima Henckel von Donnersmarck, welcomed their first child -- a boy.

Julia Fox is attached as the film's writer and director, and local background actors are currently being cast for the new feature film.

A source told Page Six that the "Nashville" star was on track for a reset when she appeared on the talk show back in May.