Premise: Pirates of the Caribbean : On Stranger Tides is a 2011 American fantasy swashbuckler film , the fourth installment in the Pirates of the Caribbean film series and the sequel to At World 's End ( 2007 ) . Pirates of the Caribbean (film series) . The franchise 's second film , subtitled Dead Man 's Chest , was released three years later in 2006 ; the sequel proved successful , breaking financial records worldwide the day of its premiere . The third film in the series , subtitled At World 's End , followed in 2007 , and Disney released a fourth film , subtitled On Stranger Tides , in 2011 in conventional 2D , Digital 3-D and IMAX 3D .
Hypothesis: Pirates of the Caribbean isn't a film series.
Label: CONTRADICTION