Sea of Love (1989)

Pacino and John Goodman are detectives on the trail of a serial killer who finds victims through the personal ads. In an undercover operation to gather fingerprints from suspects who respond to the cops' fake personal ad, Pacino's interest is piqued by a beauty who knows what she wants, which is not great since his judgment is immediately compromised.

It's a solid mystery buoyed by the easy-going chemistry Pacino and Goodman share, as well as the red-hot magnetism between Pacino and Ellen Barkin. I went digging to see if Pacino/Barkin had ever been an item and was completely unsurprised to find that they had been.

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