Complex sentence: The "Despicable Me" is the highest-grossing animated franchise of all time with $3.7 billion; it is also the only animated franchise with two films grossing over $1 billion worldwide.
Split into simpler sentences: The "Despicable Me" is the highest-grossing animated franchise of all time with $3.7 billion. It is also the only animated franchise with 2 films grossing over $1 billion worldwide.