In a bowl mix together the crushed Oreos and melted butter until fully combined, it should resemble wet sand. Once combined press into the prepared pan.
In a large bowl beat the cream cheese for two minutes on low speed. Add the sugar and mix for another minute, make sure to scrape the sides of the bowl so all is incorporated evenly.
In a bowl add chopped chocolate and set aside. In a small saucepan add cream and cook until just before boiling. Pour directly over chocolate, and let sit for 3 minutes. Then using a whisk, mix the chocolate and cream until silky.