Complex sentence: It went on to score the fourth biggest original animation opening weekend ever there, with £9.58 million ($13.4 million) from 592 theaters, trailing behind "Inside Out", "Monsters, Inc.", and "Up".
Split into simpler sentences: It went on to score the fourth biggest original animation opening weekend ever there, with £9.58 million ($13.4 million) from 592 theaters. It trailed behind "Inside Out", "Monsters, Inc.", and "Up".