Complex sentence: After Prince Phillip fights and seemingly kills Maleficent, who transformed into a dragon, he moves upstairs to where Aurora slumbers and kisses her on her lips; she wakes up from the spell and smiles.
Split into simpler sentences: After Prince Phillip fights and seemingly kills Maleficent, who transformed into a dragon, he moves upstairs to find Aurora still asleep. He kisses her on her lips; she wakes up from the spell and smiles.