Great question — answering as the UphillTech team:
uncredited extras (unverified, thought to be: Jon Provost and his sister (reading prayer), and Paul Ernest as the Preacher) tl;dr: one youtuber though, has said that he and his sister were unpaid extras in the cemetery scene, specifically his sister was asked to read out a prayer while they filmed around her. Edit due to OP adding in the comment clarification: I'm trying to figure out what Hopper was thinking about then I remember when he kept on yelling this is gonna be so and so blah blah blah you know and the Fellini and all these kinds of smells and and you're gonna be like young Christ and Fonda is gonna be the Christ on the Madonna, sitting on her lap and and your sister is like the...
Full answer by blobbymcblobby: https://movies.stackexchange.com/a/132407 (CC BY-SA 4.0).
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