Alibi is a 1931 British mystery detective film directed by Leslie S. Hiscott and starring Austin Trevor, Franklin Dyall, and Elizabeth Allan.^[1]

Alibi
Directed by	Leslie S. Hiscott
Written by	H. Fowler Mear
Based on	The Murder of Roger Ackroyd 1926 novel by Agatha Christie 1928 Alibi (play) by Michael Morton
Produced by	Julius Hagen
Starring	Austin Trevor Franklin Dyall Elizabeth Allan John Deverell
Cinematography	Sydney Blythe
Music by	John Greenwood
Production company	Twickenham Film Studios
Distributed by	Woolf & Freedman Film Service
Release date	1931
Running time	75 minutes
Country	United Kingdom
Language	English

The film was adapted from the 1928 play Alibi by Michael Morton which was in turn based on the 1926 Agatha Christie novel The Murder of Roger Ackroyd featuring her famous Belgian detective Hercule Poirot.

Austin Trevor once claimed he was cast as Poirot because he could speak with a French accent. It was the first of three Poirot adaptations made by Twickenham Film Studios in the 1930s, followed by Black Coffee the same year, and Lord Edgware Dies in 1934, all starring Trevor as Poirot. He later appeared in The Alphabet Murders, a 1965 Christie film, playing a minor role.

It is now considered to be a lost film.^[2]