(at around 44 mins) Joe enters a bar under the Third Avenue El. The building number is 915, and the writing on the front window is "Clarke's Cafe". That's none other than P.J. Clarke's at 915 Third Ave., which is still there and barely changed.
The address given for Lorrison, 170 Central Park West, is the address of the New York Historical Society.
This film was a failure at the box office for MGM, resulting in a loss of $467,000 ($5.45M in 2022) according to studio records.
The drugstore that Joe Norson calls from is the set of another MGM film noir, Tension (1949), which was shooting at approximately the same time.
According to Eddie Muller on TCM's Noir Alley (2017-10-15 and 2022-2-12), Farley Granger and Cathy O'Donnell first appeared together in They Live by Night (1948), filmed at RKO studios in 1947 but put on the shelf by new studio boss Howard Hughes. Former RKO Production Chief Dore Schary feared the picture would never be released, so he paired the actors again in this film at his new studio, MGM. Hughes learned of this and, wanting to beat Schary to the punch, finally released They Live by Night in the USA in November 1949, just a few months before this film opened nationwide. That film also bombed at the box office, resulting in a loss to RKO of $445,000 according to studio records.