10 Things You Never Knew About Ferris Bueller's Day Off

7. Broderick Dated His Onscreen Sister

Jeanie may be unlikable as Ferris€™ sister, but Jennifer Grey is a total sweetheart. After filming Ferris Bueller€™s Day Off, she and Matthew Broderick began dating. It was pretty serious for a while - they even ended up engaged. Of course, their relationship wasn€™t always fun. After vacationing together in Ireland, they ended up in a car crash that left two people dead. Broderick broke his leg during the crash, and Grey suffered from whiplash. More than a decade later, Broderick is now happily married to Sarah Jessica Parker and Grey is married to Clark Gregg.
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