Shia's Passenger Was Transformers Co-Star

The neverending saga surrounding Shia LaBeouf's DUI crash Sunday night just got a little more closure.

Entertainiment Tonight has confirmed that Transformers: Revenge of the Fallen co-star Isabel Lucas was the mystery passenger in Shia's truck when it flipped in the early morning hours of July 27.

Lucas was treated for minor injuries and was back to work on the Transformers set yesterday. LaBeouf remains at Cedars-Sinai Medical Center where he's recovering from "extensive surgery" to his hand and other minor injuries to his head and knee.