Complex sentence: The film introduces Selina Kyle (Anne Hathaway), a sly, morally ambiguous cat burglar, and Bane (Tom Hardy), a mercenary bent on destroying Gotham City who forces an older Bruce Wayne to come out of retirement and become Batman once again.
Split into simpler sentences: The film introduces Selina Kyle (Anne Hathaway), a sly, morally ambiguous cat burglar, and Bane (Tom Hardy), a mercenary bent on destroying Gotham City. Drawn back into action by new threats facing the city, an older Bruce Wayne is forced to come out of retirement and become Batman once again.