Complex sentence: With Carina between Salazar and Jack, Barbossa jumps down the chain and sacrifices himself to kill Salazar, giving Sparrow, Carina and Henry a chance to escape.
Split into simpler sentences: With Carina between Salazar and Jack, Barbossa jumps down the chain and sacrifices himself to kill Salazar. This gives Sparrow, Carina, and Henry a chance to escape.