The full title of the film is often given as The Quality of Life: A Dominic Da Vinci Movie.
As of this film, Nicholas Campbell is the only actor to appear throughout the entire franchise, having appeared in every episode of both series, as well. Ian Tracey, who also appeared in every episode, is suspiciously absent given Mick's role as coroner.
The film notably does not resolve the plot threads that were left dangling by the end of the finale. One would even notice that Dominic and Jacobs appear to get along better than they had during much of the series.