What is the name of the fictional African nation in 'Black Panther'?

In which 1980 film does Darth Vader reveal he is Luke Skywalker's father? What is the name of the shark in 'Jaws', as nicknamed by the film crew? What is the name of the hotel in 'The Shining'? What is the name of the motel in 'Psycho'? What is the name of the fictional African country in 'Coming to America'? What is the name of the town where 'Back to the Future' takes place? In which fictional town does 'Jaws' take place? In which fictional town does 'It's a Wonderful Life' take place?