20th Century Fox has revealed a new clip from its upcoming X-Men sequel Dark Phoenix, which effectively resurrects the age-old rivalry between Professor X and Magneto.The clip opens with a shot of Magneto, who is evidently on his way to make an attempt on Jean Grey's life (presumably for the murder of Mystique). Meanwhile, he's flanked by a team of like-minded mutants, including apparent X-Men defector Beast.

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The group is interrupted by Professor X, who himself is joined by X-Men members Cyclops, Storm and Nightcrawler. Charles attempts to talk his old friend out of going through with his plans, apologizing for what Jean did and reminding Erik that engaging in such a public display of violence will only harm the reputation of mutant-kind at large.

Naturally, Erik doesn't want to hear it, declaring that Charles is "always sorry" and that "nobody cares anymore," providing a source to the same ominous line from Dark Phoenix's first trailer. The Master of Magnetism remains steadfast in his goals, declaring, "The girl dies."

It's certainly no secret to X-Men fans that the conflict between Professor X and Magneto is one of the franchise's most ubiquitous elements. However, 2016's X-Men: Apocalypse saw the two reach a truce of sorts. But now that the Phoenix Force has taken Jean as a host and blood has been spilled as a result, it's clear that Magneto has invoked the adage of "an eye for an eye."

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Directed and written by Simon Kinberg, Dark Phoenix stars James McAvoy as Charles Xavier/Professor X, Michael Fassbender as Erik Lehnsherr/Magneto, Jennifer Lawrence as Raven Darkhölme/Mystique, Nicholas Hoult as Hank McCoy/Beast, Sophie Turner as Jean Grey/Phoenix, Tye Sheridan as Scott Summers/Cyclops, Alexandra Shipp as Ororo Munroe/Storm, Kodi Smit-McPhee as Kurt Wagner/Nightcrawler, Evan Peters as Peter Maximoff/Quicksilver and Jessica Chastain. The film arrives in theaters June 7.