The Return of the Musketeers (1989)
Richard Lester's 1989 The Return of the Musketeers reunites much of the creative team and cast behind his celebrated 1973 and 1974 films, including screenwriter George MacDonald Fraser and stars Michael York, Oliver Reed, and Frank Finlay reprising their roles fifteen years later, to adapt Twenty Years After, the middle novel of the d'Artagnan saga. It's a true rarity among the adaptations on this site: a film sequel made by essentially the same team, adapting the actual sequel novel, with the same actors visibly aged into their characters' own later years.
Real Continuity, Where Most Adaptations Start Fresh
Nearly every other adaptation of the d'Artagnan saga on this site treats each novel (or, more often, just the first novel) as a standalone production with its own new cast. This film is the exception: York, Reed, and Finlay had really aged fifteen years since playing these characters, giving their performances an authenticity that a fresh cast, however talented, simply couldn't replicate. The visible passage of time on screen mirrors the novel's own central theme of friends confronting how much they, and the world around them, have changed.
Milady's Daughter, an Invention With Real Textual Roots
The film's Justine, Milady de Winter's vengeful daughter, doesn't appear under that name in Dumas's actual novel; Twenty Years After's equivalent avenging figure is Mordaunt, Milady's son, whose quest for revenge against the men who executed his mother drives much of the novel's darkest material. The film's choice to gender-swap this character into a daughter is a significant invention, though the underlying premise, a child of Milady's returning to seek vengeance against the musketeers responsible for her execution, is drawn directly and recognizably from the novel's actual plot.
Raoul's Introduction, Compressed but Present
The film includes Athos's son Raoul, introduced here much as he is in the novel, a promising young man whose story will expand significantly in the saga's final volume, The Vicomte de Bragelonne. His presence in this film gives audiences a glimpse of the next generation the novel introduces, even though the film's runtime doesn't allow for the fuller development of his character that the source material provides.
The Fronde, Simplified for the Screen
Dumas's novel roots its plot in the real, actually complex politics of the Fronde, the civil wars dividing France during Louis XIV's minority, discussed in more detail in this site's Glossary. The film necessarily compresses this real historical conflict's political texture into more straightforward adventure-movie terms, retaining the basic shape of the musketeers finding themselves on opposing sides of a political crisis without fully replicating the novel's careful attention to the actual factional politics involved.
A Fitting, if Little-Seen, Conclusion to Lester's Trilogy
Though less celebrated and less widely seen than the 1973 and 1974 films, this production functions as a real third chapter in Lester's take on the saga, closing out a screen trilogy with the same creative sensibility (grounded physicality, real historical texture, and a willingness to let its heroes age and face real consequences) that made the earlier films so well regarded. For anyone who loved Lester's 1973 Three Musketeers, this sequel is worth seeking out specifically for how honestly it lets its beloved cast grow older on screen.
Read the source material at Twenty Years After.