Following the surprising news of director Tim Miller's departure from "Deadpool  2," a new report may shed light on his creative clash with star Ryan Reynolds. It turns out that a certain mutant cyborg from an apocalyptic future could bear some of the blame.

Although the split between Miller and Fox has been characterized as "amicable," TheWrap alleges the filmmaker's relationship with Reynolds has been "contentious," with the two not even speaking for long stretches after the release of "Deadpool" in February.

RELATED: Rumor: Fox Has a Domino Shortlist For "Deadpool

The website contends the rift is rooted in the actor's renegotiated deal for the sequel, provided him with a bigger payday, more creative control and casting approval. That divide was allegedly widened first by conflicting visions for the film and then by a disagreement regarding the casting of Marvel Comics hero Cable: Miller purportedly wanted "Friday Night Lights" star Kyle Chandler for the role, while Reynolds apparently envisioned someone else. (Writers Rhett Reese and Paul Wernick said in April they’re looking for a “physically imposing” actor with “strength, gravitas, a purposefulness that Deadpool doesn’t have.”)

Produced for an estimated $58 million, "Deadpool" earned $782.6 million worldwide, and set opening-weekend records for February and for R-rated films. It's also the top-grossing film in Fox's "X-Men" franchise.

"Deadpool 2" is expected to open in 2018, but Fox has yet to announce a date.