What's the Worst That Could Happen?
(2001)

Lutetia and Amber, fed up with Max (Danny DeVito) and Kevin's (Martin Lawrence) behavior, conspire to get the ring back themselves to teach them a lesson. The two men realize they've been had, and call a truce.

Detective Tardio busts Max with insurance fraud with the help of Gloria, Max's (former) assistant. Amber gives Kevin back the ring and tells him to throw it away. He does.

Some time later, Kevin, posing as a lawyer, helps Max get out of his trouble with Congress. (It's implied that they bribed the congressmen.)

At the very end of the movie, Kevin runs off with Max's lucky watch.

Thanks Erica!