

A failed window dresser exploits a being with rat-like features in an effort to make money.
Practical Effects
The rat costume: genuinely upsetting prosthetics work.
Production
Clint Eastwood's $7M gift to his then-partner's directing dreams.

Director
Sondra Locke
Trivia, insights & behind the scenes
Warner Bros. buried this so hard it played in only nine theaters. Nine.
Locke later claimed Eastwood sabotaged her career; Ratboy became Exhibit A in their very public, very messy legal war.