Wasp (2004).

A+
Oscar for Best Live-Action Short
A young mother (Natalie Press) who wants to rekindle an old relationship neglects her four children for an evening.
Dog (2001)

A+
A teenager (Joanne Hill) is introduced to the toxic side of masculinity when a stray dog insinuates itself into her rendezvous.
Milk (1998)

A+
Andrea Arnold’s debut live-action short. A young woman (Lynda Steadman) tries to find the meaning of life after a miscarriage.