The ink's barely dried on Christina Haack's divorce papers with ex-husband Ant Anstead and he's already moved on to a big-time Hollywood star ... Renee Zellweger!!!
Sources with direct knowledge of the situation tell TMZ ... Ant and Renee met earlier this month when they filmed an episode of his new Discovery+ show "Celebrity IOU Joyride."
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Well, as luck would have it ... we're told after Ant and Renee filmed their episode she actually returned to the set at some point to drop off some work boots for Ant. It's unclear when exactly they decided to go out, but our sources say they're doing exactly that now.
The dating news comes just days after we first reported Christina and Ant's divorce was finalized. They'll share custody of their 1-year-old son, Hudson, and Ant has 2 kids from a previous relationship.