 There is potentially a bit of borrowing from "Romeo and Juliet" in that the families of the two people wanting to marry, are sworn enemies of each other, with the Gresham and Sinclair families easily being mistaken for the feuding Montague and Capulet families.The movie never identifies the denomination to which the "Church of the Redeemer" is supposed to belong.The presence of a Bishop, the vestments that Sam Whitehead wears, Sam's prefacing of his sermon with collect and the fact that his title is "pastor" suggest that the denomination is Methodist which has an Episcopal system or possibly one of the groups which formed the Evangelical Lutheran Church in America.