Марк Силверштейн

American screenwriter. His writing partner is Abby Kohn. They are known for co-writing romantic comedy films such as Never Been Kissed, He's Just Not That Into You, How to Be Single, and the story for Valentine's Day. They also co-wrote the romantic drama film The Vow. Silverstein is married to actress Busy Philipps, with whom he has two daughters, Birdie and Cricket.