Database: imdb
Question: Find the producers of all movies in which " Kate Winslet " is an actor
SQL: select t1.name from cast as t3 join actor as t2 on t3.aid  =  t2.aid join movie as t5 on t5.mid  =  t3.msid join made_by as t4 on t5.mid  =  t4.msid join producer as t1 on t1.pid  =  t4.pid where t2.name  =  "kate winslet";