Jack Reynor has signed on to star alongside Lily James in Seasons, a new horror thriller in the works at Amazon MGM Studios, sources confirmed to USA Film News. The project, which has been quietly developing, marks a notable reunion of sorts for the two actors, though no director or plot details have been officially announced at this time.

Reynor, best known for his breakout role in Sing Street and his unnerving turn in Ari Aster's folk-horror landmark Midsommar, will bring a pedigree of genre credibility to the film. His casting alongside James - who has shown her own range from Mamma Mia! Here We Go Again to the gritty thriller The Commuter - suggests Amazon MGM is aiming for a prestige horror package. The studio has not released a logline, meaning the film's storyline remains tightly under wraps, but insiders describe Seasons as a supernatural-tinged chiller that leans into atmospheric dread rather than jump scares.

The title itself hints at a thematic structure that could revolve around cyclical change, decay, or renewal - elements that have become hallmarks of elevated horror since Midsommar redefined the sunlit nightmare. Reynor's character is unknown, but the actor has openly discussed his interest in projects that subvert audience expectations, telling press after Midsommar that he was drawn to the script's refusal to offer easy catharsis. That sensibility appears to align with the tone Amazon MGM is chasing here, though the studio has kept casting details tight, likely to preserve the film's mystery.

This announcement continues a busy period for Reynor, who has been juggling independent dramas with bigger studio fare. He recently wrapped production on a small-scale thriller set in his native Ireland, and he executive produced a documentary about the Dublin music scene that premiered earlier this year. His involvement in Seasons was negotiated through his representatives at CAA, with the deal closing in the last few weeks. For James, who is currently attached to multiple high-profile projects, Seasons offers her a chance to headline a horror vehicle that could showcase a steely, survivalist edge she has hinted at in earlier roles.

Amazon MGM Studios has been aggressively expanding its horror slate, recognizing that the genre consistently delivers outsized returns on modest budgets. The acquisition of Seasons fits a pattern of the studio snapping up character-driven scripts by emerging writers, then pairing them with actors who have proven box-office and festival appeal. The studio has not yet greenlit a theatrical release date or a streaming rollout, but a source noted that Amazon MGM typically fast-tracks genre titles once principal photography gets underway, potentially positioning Seasons for a late-2027 debut.

The film's production timeline remains unconfirmed, though casting announcements of this nature usually precede a start date within four to six months. No cinematographer, composer, or production designer has been attached publicly, which suggests the director's hire could trigger a rapid cascade of key crew announcements. Industry insiders speculate that Amazon MGM may be waiting for a filmmaker with a distinctive visual voice to sign on before revealing the full creative team, a strategy common when a studio wants to build awards-season buzz for a horror property.

Reynor's history with genre material is worth noting for anxious fans. In Midsommar, he played the emotionally brittle Christian, a role that earned him widespread critical praise for portraying toxic masculinity with unsettling realism. That performance, set against a sun-drenched Swedish cult ritual, remains one of the most discussed horror turns of the past decade, and any new collaboration with a studio known for smart horror instantly invites comparisons. Seasons will not be a direct project by Aster, but the shared DNA of folk horror - rural isolation, ritualistic violence, psychological unraveling - seems present based on early whispers.

For now, Seasons exists mostly as a promise: two bankable stars, a genre with proven audience appetite, and a studio with deep pockets. The lack of concrete detail has not dampened enthusiasm among industry watchers, who view the pairing of Reynor and James as an intriguing counterweight to typical horror casting. Both actors bring emotional volatility and physicality, qualities that elevate material beyond standard scream-queen or final-boy archetypes.

Amazon MGM has not issued a formal statement, and representatives for Reynor and James declined to comment beyond confirming the deal. The project remains in active development, with script revisions underway and casting for supporting roles expected to begin shortly. As Seasons moves closer to production, more specifics on the director, storyline, and release plan should surface. For now, the news gives horror fans a clear reason to mark this title on their radars, especially those still waiting to see Reynor sink his teeth into a lead genre role.

The film has no assigned director, which leaves the project's creative direction open - but with a cast this compelling, Seasons already has the essential ingredient for a breakout hit. Expect further announcements from Amazon MGM in the coming months as pre-production ramps up.

Source: The Hollywood Reporter