BIG BRASS IN POCKET: Here’s a neat little mystery. Chrissie Hynde and the Pretenders recently covered Burt Bacharach and Hal David’s “Windows of the World.” It’s the new single from the sound track to “1969,” an upcoming film starring Robert Downey Jr. and Kiefer Sutherland. While the band was cutting “Windows,” it also did a remake of “1969,” a pre-punk classic by the Stooges, Iggy Pop’s original band. What a perfect song for the film, right? Wrong. According to Jolene Cherry, the film’s music coordinator, the Pretenders’ record label--Warners Records--refused to grant the rights for the song’s inclusion on the sound track (no doubt because the sound track is on rival PolyGram Records). “Chrissie specifically cut that song for the film,” said Cherry. “But Warners was extremely upset about her being involved in the project. They did agree to let her use one song, ‘Windows,’ on the sound track, but they wouldn’t agree to the second one. The only thing they’d let us do was put it out as the B-side of the single. But it was a big disappointment, because obviously it would’ve been perfect for the movie.” . . . Meanwhile, A&M; Records has a cast of all-stars for its upcoming “Scrooged” sound track, due Nov. 15. The first single--a remake of Jackie DeShannon’s “Put a Little Love in Your Heart” featuring the inspired pairing of Annie Lennox and Al Green. Also on board: the New Voices of Freedom (who do a U2 song called “Sweetest Thing”), Natalie Cole (who does Mel Torme’s “The Christmas Song,” a ballad popularized by her dad), Miles Davis (who plays with David Sanborn and Larry Carlton on “We Three Kings of Orient Are”), Buster Poindexter (who covers Van Morrison’s “Brown Eyed Girl”) and Robbie Robertson (who does “Christmas Must Be Tonight”).