I just watched Batman Returns last night. Billy Dee Williams speaks to the people of Gotham City: We've received a letter from Batman this morning. 'Please inform the citizens of Gotham that Gotham City has earned a rest from crime. But if the forces of evil should rise again, to cast a shadow on the heart of the city, call me.'

This might be changed to this:
We've received a letter from Vader this morning. 'Please inform the citizens of Bespin that Bespin has earned a rest from crime. But if the forces of evil should rise again, to cast a shadow on the heart of the city, call me.'

Maybe even with a Batman/Vader sign that shines in the background.