Seven Brides for Seven Brothers (1954)

Continuity mistake: In the barn dance scene Gideon is doing flips on the sawhorse. His shirt becomes untucked and then retucked between flips.

Rev. Elcott: Sounds like Pansy has the croup.

Question: At the opening of the movie, when it shows the wagon in the river, what is the white thing in the water toward the right of the screen near the bank? At first it looks like rapids, but looking closer it looks more like something rolling in the water.