The Perfect Crime is a 1928 American sound part-talkie crime drama film directed by Bert Glennon and starring Clive Brook, Irene Rich and Ethel Wales.^[1] In addition to sequences with audible dialogue or talking sequences, the film features a synchronized musical score and sound effects along with English intertitles. The soundtrack was recorded using the RCA Photophone sound-on-film system. The film is loosely based on the 1892 novel The Big Bow Mystery by Israel Zangwill.

The Perfect Crime
Directed by	Bert Glennon
Written by	Ewart Adamson Randolph Bartlett Victor Currier William LeBaron
Based on	The Big Bow Mystery by Israel Zangwill
Produced by	William LeBaron
Starring	Clive Brook Irene Rich Ethel Wales
Cinematography	James Wong Howe
Edited by	Archie Marshek
Production company	Film Booking Offices of America
Distributed by	Film Booking Offices of America Ideal Films (UK)
Release date	August 4, 1928
Running time	83 minutes
Country	United States
Languages	Sound (Part-Talkie) English Intertitles

A criminologist sets out to prove there is such a thing as a perfect crime, and commits a murder without leaving any clues. However, when an innocent man is arrested for the crime he is presented with a moral dilemma.

This was the first feature film not produced by either Warner Bros. or Fox Film to contain synchronized sound, also being the first non-Warner feature to contain any talking sequences.