Amazing Grace is a movie set in 18th century England. Willaim Wilberforce (Ioan Gruffudd) is only 21 years old when he's elected to the British House of Commons. He comes up with many new and radical ideas, mostly about slavery. He says slavery is wrong, which is not the accepted idea at the time. John Newton (Albert Finney) is Wilberforce's best friend. Lord Charles Fox (Michael Gambon) holds quite a bit of sway, since he is a noble, and Wilberforce tries to get him to come to his side. Wilberforce gets a freed slave on his side, Olaudah Equiano (Youssou N'Dour II), and helps him to write a book describing his experience as a slave. This book becomes a bestseller, and helps wake the people of England up to the horrors of slavery.