Fool's Gold
(2008)

Ben and Tess (Matthew McConaughey and Kate Hudson) find the lost treasure, and with the help of his old boss Moe, millionaire Honeycutt and his daughter, they bring it up.

Rapper and entrepreneur Bigg Bunny, who is also after the treasure, is killed when Tess kicks him out of a plane.

Ben and Tess remarry, she gets pregnant, and everyone gets wealthy.

Thanks Mary C!