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Joanna Coles edits a magazine called Marie Claire.

Coles put a one Tina Fey, star of NBC's 30 Rock, on the cover of her May issue.

Fey starred in the movie Baby Mama, which is what the May cover was promoting.

Scenes from Baby Mama were filmed outside the building at 210 Riverside Drive, at 93rd Street.

Coles lives at 210 Riverside Drive. (Before you get huffy about us violating her privacy, her home address is already available to anyone, thanks to election donation records.)

An $649,000 apartment listing from Halstead for a 1 bedroom/1 bathroom co-op at 210 Riverside Drive (Apartment #5D) happens to mention that the building "served as the backdrop for You've Got Mail, Baby Mama, and other recent films."

The realtor attached to the listing, Halstead's Victoria Matus, is also said to be Coles own real estate broker. (Hearst spokeswoman Jessica Pollack says "Joanna has no relationship and has never used Victoria Matus as her broker.")

A coincidental confluence of events? Or a carefully executed marketing ploy where everybody benefits?