
Continuity mistake: During Esther's banquet when she is pleading her petition, Xerxes has a dagger tucked into the front of his golden belt, but while Esther is holding the necklace in her hand, in two shots facing Xerxes the dagger is gone, and then it returns. (01:49:50)
Answer: No, Xerxes does not kiss her forehead because you see shortly after that, she is still asleep then wakes up. If he had really kissed her she would have felt it and woken up right then.