Zach Galifianakis — My ‘Hangover’ Date’s 87 and Not Homeless (Anymore)

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Stu: So, uh, are you sure you”re qualified to be taking care of that baby
Alan: What are you talking about I”ve found a baby before.
Stu: You found a baby before Where
Alan: Coffee Bean.

Zach Galifianakis pulled a similar Alan move in real life — replace “baby” with “homeless lady” — and you”ve got his date to the “Hangover 3” premiere … who our sources spoke to right before the big event!

Our photog spotted 87-year-old Elizabeth “Mimi” Haist on Monday in L.A. — the woman Zach rescued from homelessness two years ago.

The story goes … Zach became friends with Mimi at Fox Coin Laundry in Santa Monica back in 1994 — where she would help people fold their clothes … for tips.

When he found out she”d become homeless a few years ago, he decided to help out … setting her up in a one bedroom apartment and paying her rent. 

Zach also began taking Mimi as his date to his movie premieres — and walked the red carpet with her at “Hangover 2,” “The Campaign” … and now “Hangover 3.”

And how does Mimi feel about Zach Check out the video … it”s adorable.