Two films about the 1970s and early 1980s rock band are in development - a documentary and a biopic, and the group's frontwoman thinks the perfect leading star is in Pugh.
"If it were somebody like Florence Pugh, I would be in heaven," Harry told The Times newspaper.
"I just think she's a great actor, and she could do anything."
As a sideline to Blondie - which sold over 40 million records, including Call Me and The Tide Is High - Harry dabbled in acting in the 1980s.
She played a radio presenter in the 1983 horror-Sci-fi film Videodrome, and starred in the 1989 comedy-romance anthology film New York Stories directed by Martin Scorsese.
Filmmaker Ridley Scott offered Harry the role of an android called Pris in the 1982 Sci-fi-action film Blade Runner, but she declined because her record label didn't want the music legend to take time off.
The part went to Daryl Hannah and Harry admitted turning down Blade Runner was her "biggest regret", and she thinks acting could have been a bigger part of her career if she had agreed to do the film.
Harry - who still performs - turned 80 on July 1, and she has no plans of retiring.
"Sometimes when I walk out on stage and there's such a terrific response, I feel like I'd better stop while I'm ahead," she said.Â
"But no, it's still joyful."
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