Ross made a successful transition from singing to acting in 1972, when she played Billie Holiday in Lady Sings the Blues, a film which garnered the star a Best Actress Academy Award nomination.
The former Supremes icon has not acted since 1999, when she appeared in TV movie Double Platinum alongside singer Brandy - but Perry hopes to change that.
He has written a leading role for the superstar in another music-focused film - and insists he will not shoot the project until Ross agrees to come onboard.
When asked who his perfect co-star would be, he tells Hollyscoop.com, "Diana Ross. I have the perfect role for her. And I haven't shot that movie yet because I'm waiting for her to say yes.
"It's a jazz movie set in the 1940s, and (Ross) would play a jazz singer who runs a juke joint (music venue), and I just wish she would do it."