Riley Keough stars in 'Daisy Jones & The Six,' the finale streaming on Friday on Prime Video.
The latest development comes amid a battle for Lisa Marie Presley's trust.
Lockwood filed the documents in court on Thursday.
Elvis Presley's widow posed for photos at the premiere of the Netflix animated series, 'Agent Elvis.'
The animated series will land on Netflix March 17.
Baz Luhrmann's Elvis biopic is Elvis is currently available to stream on HBO Max, Amazon Prime, Apple TV, and Hulu.
Riley Keough missed the London premiere of her show, ‘Daisy Jones and the Six,’ amid her legal battle with grandma, Priscilla Presley.
The actress is currently in a legal battle with her grandmother, Priscilla Presley.
A month after Lisa Marie Presley's death, a source tells ET her daughter, Riley Keough, and mother, Priscilla, are not speaking.
A source tells ET that the two have been communicating through lawyers amid their ongoing battle over Lisa Marie's trust.
Priscilla Presley says she wants 'no further communication' with the 'Jackass' star.
'Elvis' director Baz Luhrmann and his wife, producer Catherine Martin, chat with ET at the Oscars’ annual luncheon in Beverly Hills.
ET spoke with director Baz Luhrmann at the Oscar nominees luncheon on Monday.
The lunch comes just weeks after Lisa Marie's shocking death.