Complex sentence: Catwoman tries to escape with the stolen paintings, but Batman recovers them and Catwoman, unwilling to be put in a cage again, allows herself to fall into a smokestack, leaving her fate ambiguous.
Split into simpler sentences: Catwoman tries to escape with the stolen paintings, but Batman recovers them. Unwilling to be put in a cage again, Catwoman allows herself to fall into a smokestack, leaving her fate ambiguous.