When Ali Came to Ireland (2012)
When Ali Came to Ireland is a 2012 Irish documentary film directed by Ross Whitaker. It tells the story of how Killorglin-born circus strongman and publican, Michael "Butty" Sugrue, put up £300,000 and persuaded Muhammad Ali to make his first visit to Ireland to fight against Alvin Lewis in Croke Park on 19 July 1972.
More at Wikipedia.