Films/O

On

 * Onward: There are brief para-giantess moments with sprites.
 * Onnelin ja Annelin talvi: It’s a finnish winter movie. A family of tinies was traveling when their car get broken, because that, the tiny family stay with Onnelin and Annelin while can’t continue their way.

Oy

 * Oyayubihime: English unofficial translation: Thumb Princess. It's about a typical Japanese schoolgirl that's so desperate for love from her crush that she buys some strange liquid from a shifty salesman that shrinks the crush and now hides him in her room and she slowly begins to basically develop a god complex.