Does 'Paul Blart: Mall Cop 2' fit the bill?
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'Sex and the City 2' (2010)
Sequel to: The first "Sex and the City" film and TV series
Did it kill the franchise: No. "The Carrie Diaries" -- a prequel series -- had two seasons on the CW starting in 2013.
Why it was so unnecessary: The first film already did its darndest to tie up the HBO show, but then there had to be another series of gimmicks to get the quartet into Abu Dhabi -- NOT "THE CITY" -- a setting in which they actually became truly unbearable. - Katie Hasty