Molly doesn't remember Tilly (Situational Irony)
When Tilly returns to Dungatar, she goes straight to her mother Molly, to look after her. The irony of her arrival, however, is that Molly refuses to acknowledge Tilly and does not seem to remember her at all. Tilly is reviled in the town and one would imagine that her mother would be the only one who would welcome her there, but Molly does not even acknowledge that she knows Tilly and treats her with a sharp disdain.
Farrat Loves Couture (Situational Irony)
Sergeant Farrat is the man who initially sent Tilly away in the first place, and when he first comes across Tilly, he seems menacing and vindictive at first, like he might persecute her for something. However, he rather ironically asks Tilly if her dress is made by Dior, and seems to want to know more about her practice as a dressmaker. It is ironic that the constable of the town is secretly a women's-apparel lover and does not want to persecute Tilly at all. He only wants to apprentice with her in her at-home dress shop. A cop who loves couture is in itself an ironic position.
Molly Stealing Teddy's Flask (Dramatic Irony)
While Teddy is out on a date with Molly and Tilly, Molly steals his flask of whiskey several times without him knowing. Then, when Tilly is measuring Teddy for a suit, she steals the flask again. This is a small and humorous instance of dramatic irony, in which we know something that Teddy does not.
Teddy's Death (Situational Irony)
The moment of Teddy's death is a darkly comic and ironic one in the film. In a romantic post-coital moment, he begs Tilly to proclaim that she is not cursed, hanging over the hole that falls into the silo of wheat beneath them. He jumps in, thinking that he will simply land on the wheat, just as Tilly says that she is not cursed. The romantic gesture goes awry, however, and Teddy drowns in the wheat, dying. In the very moment that Tilly says she is not cursed, her one true love dies, a horrific irony.
