Baldwin, target of an alleged stalker. (Amy Sussman/GETTY IMAGES)

The New York Post cites law enforcement sources who say that Genevieve Sabourin, 40, had previously e-mailed and texted Baldwin to say that she wanted to have his baby and needed cash. After she allegedly traveled to the Hamptons on March 31, the same weekend he got engaged there to girlfriend Hilaria Thomas, Baldwin filed a police complaint. When she showed up at his Manhattan apartment building on Sunday, the actor’s doorman notified Baldwin, who was out of town; he in turn contacted police.

Sabourin was subsequently taken into custody and charged with aggravated harassment and stalking.

But that’s not the weird part.

Okay, the stalking story is admittedly bizarre, and undoubtedly disturbing for both Baldwin and his fiancee.

But a strange footnote to this story is how Sabourin and Baldwin initially met: via their work on the mega-flop “The Adventures of Pluto Nash.”

The Post says the two first connected on the set of that film; IMDB confirms that Sabourin was a unit publicist for the ill-conceived sci-fi comedy, in which Baldwin made an uncredited cameo appearance as MZM.

Okay, show of hands: Who remembered that Baldwin was in “The Adventures of Pluto Nash”? No one, right? We’re assuming Baldwin had been hoping it would stay that way.

Thanks to longtime Celebritology reader Byoolin — who tweeted about this obscure but clearly highly relevant detail in this case — we’re all well aware.

Disturbing angles in this Alec Baldwin’s Quebecoise stalker story - not least of which is that he was in Pluto Nash.

— Brian (@byoolin) April 9, 2012

Baldwin has not addressed the matter via a statement or his own Twitter feed, but his rep, Matthew Hiltzik, told TMZ: “As you know, stalking is a serious issue, so we’ve turned the matter over to the New York Police Department.”