In no particular order my top films are:
The Castle: A wonderful Australian film on eminent domain that points out how the state can compensate a many for his house but not for his home.
Rabbit-Proof Fences: Another Australian film that is heart-rending look at how the welfare state treated Aborigines by destroying their families and how three small children tried to escape their state care gives just to they could go home to Mum.
Evelyn: Pierce Brosnan is man deserted by his wife and left with his children. In need he approaches the welfare system for help only to find they take his children and he has to fight to get them back.
East/West: A stunning French drama about a Russian doctor and his French wife. The physicians returns to Russia on the promises of Stalin and finds an entire nation in chains. Thrilling.
The Tailor of Panama: a fascinating drama on the incentives of the government “information” industry in regards to events in other nations. A classic example of the distorted incentives that produce wacky “intelligence” used to justify invasions.
Harrison Bergeron: A great adaptation of Kurt Vonnegut’s short story about a society where government makes everyone equal in talent.
The Marva Collins Story: A good film about a teacher who decides to buck the system and start her own school and why she succeeded where state schooling failed.
I’d also add: To Kill a Mockingbird, The Winslow Boy (1948 version), Paradise Road, Breaker Morant.