Database: cre_Drama_Workshop_Groups
Question: What are the names of workshop groups in which services with product name "film" are performed?
SQL:
SELECT T1.Store_Phone ,  T1.Store_Email_Address FROM Drama_Workshop_Groups AS T1 JOIN Services AS T2 ON T1.Workshop_Group_ID  =  T2.Workshop_Group_ID WHERE T2.Product_Name  =  "film"