The Turners of Prospect Road

The Turners of Prospect Road is a 1947 British drama film directed by Maurice J. Wilson and starring Wilfrid Lawson, Helena Pickard and Maureen Glynne. A pet greyhound wins a major race meeting. It was shot at Walton Studios. As of 1996, it was missing from the National Film Archive. It was shown on Talking Pictures TV on 16 May 2021. 
Premise.
A London cabby finds a greyhound puppy in his cab, and gives it to his daughter. She raises it and trains it up at the race tracks, and in spite of crooked rival owners, the dog eventually wins the Greyhound Derby.
Critical reception.
"TV Guide" noted, "there are some fine moments of humor in this simple film and the acting is good, though not extraordinary. Made on an obviously limited budget, this is a good example of generic filmmaking, its amiable and predictable story populated by cutout characters."
The film was criticised by sectors of the greyhound industry for stereotypical portrayal of greyhound racing. The filming took place at Clapton Stadium and White City Stadium.