While sometimes a bit melodramatic, "Spitfire" (or "The First of the Few") is a good historical-based drama that follows the development of the Spitfire airplane that was so important to Britain in World War II. Most of the film concerns the work that went into the plane, but there are also a few aerial scenes. The historical story is interesting and significant, and was even more so at the time that the film was made. It moves rather slowly at times, but is carried by the two fine stars in the lead roles.
Leslie Howard works well as Mitchell, the designer of the plane. His dreaminess seems appropriate for a man who created an effective new invention by looking beyond the ways that things had been done in the past. David Niven is particularly good as the pilot who tests the plane and invests his own time and career to see that Mitchell's invention gets a chance. Niven also narrates the story. Those two help make up for some slow stretches in the plot. At times things also seem a bit exaggerated, but then it was a time when daily events were filled with melodrama.
This would be a good film to watch for anyone with an interest in historical or war films.