To put it lightly, Luke and Leia didn't exactly have a great father figure in their lives. However, Darth Vader has decided to turn things around - just in time for Father's Day. After leaving the Dark Side, Vader is turning a new leaf and becoming a more present parent. He will not stop until everything is absolutely perfect for his kids' surprise birthday party. Of course you can't have a party without cake and balloons, but Vader goes beyond those. Batman and the Joker are on the guest list ... as well as some adorable kittens. Though Vader and his children have their differences, he shows that "it's never too late to be a great dad."