The film like most in the series doesn't really attempt to offer much interpretation to the events that it depicts. There is the odd explanatory note by the narrator, such as when Boaz and his close relative sit down to discuss their field, but these films otherwise play the stories with a fairly straight bat. Obviously every film version of a written text offers some interpretation, nevertheless some do this more than others. (For what it's worth the most unusual aspect of this scene where the closer kinsman gives Boaz his sandal is pictured below). The intended audience of these films was probably Sunday School children who had little or no knowledge of these stories, and by that standard they are fairly effective.
That would also explain the only glaring omission from the story - the episode where Ruth "sleeps at the feet" of Boaz. Many scholars consider this to be a euphemism, and I suppose that even taken literally it is hardly the kind of thing a Sunday School teacher wants to encourage her class to do. It's a shame though that of only four films about Ruth, half of them are for children, and one is so old that the emotional/relational/sexual implications of this scene are unexplored. Underneath the thick layers of cultural practice there is an interesting story, but few biblical stories are so encased in their times that they remain so impenetrable to all but the most scholarly.
Anyway, here is the scene guide:
Intro - the Women leave Moab (Ruth 1:1-5)
Orpah returns, Ruth stays (Ruth 1:18)
Naomi arrives in Bethlehem (Ruth 1:19-22)
Ruth Meets Boaz - (Ruth 2:1-18)
Ruth tells Naomi about Boaz - (Ruth 2:19-23)
Ruth and Boaz meet at night - (Ruth 3:9-12,15)
Ruth reports back to Naomi - (Ruth 3:16-18)
Boaz and the Kinsman Redeemer - (Ruth 4:1-12)
Ruth's Ancestors - (Ruth 4:13-22)