Mystery Men
(1999)

Champion City's champion, Captain Amazing (Greg Kinnear), is losing his endorsement deals due to a shortage of super villans.  Looking to jump start his career, Amazing arranges for the parole of former nemesis Casanova Frankenstein (Geoffrey Rush).  BIG MISTAKE! 

Frankenstein captures Captain Amazing! 

The Mystery Men are:

The Mystery Men accidently kill Captain Amazing but somehow prevail and save the city.

Thanks Don P!