USSR even had a special programme targeting famous artists/writers etc. They'd invite them to Moscow or Leningrad and give them a majestic tour about how nice Soviet life is.
We had an interesting situation in Lithuania. A lot of local inteligentsia took the tour in 1930s and initially supported Soviet occupation. Quite a few of them quickly backpedaled when they saw how real day-to-day soviet life looks like.
That programme is one of the reasons why a lot of famous people in the West supported USSR during cold war. Old the bad things must be bourgeois propaganda anyway..