The Batman Superman Movie: World's Finest1997

Lex Luthor:
[grabs Joker] You maniac! You idiot! How dare you use one of my laboratories for your...?

Joker:
Harley?

[Harley somersaults out and strikes a ridiculous fighting stance]

Harley Quinn:
Put him down, baldy!

Lex Luthor:
Mercy?

[Mercy slams a flying kick into Harley]

Mercy Graves:
Here's for that punch in the face!

Joker:
[to Luthor] Can't we discuss this like gentlemen?

[Luthor reluctantly releases Joker, while sounds of fighting continue in the background]

Harley Quinn:
Ooh, listen to Little Miss Can't-Take-A-Joke!

[as Joker guides Luthor to a chair, Mercy goes flying across the room]

Joker:
Thank you. Have a seat, please.

[as they sit, Harley charges across the room]

Harley Quinn:
BANZAI!