The insanely effing popular "Deadpool" movie, starring , is officially part of the "X-Men" universe, so it stands to reason that Deadpool could mix in with the core team in the next set of films. Or would that be like inviting your drunk uncle to the children's party?

, who directed "X-Men: Apocalypse," talked to Variety about the complications of adding Wade Wilson's alter ego to the X-Men universe:

"If you take a character as irreverent and meta as Deadpool and connect him to something as grounded and serious as X-Men, you have to do it carefully and gently. When you drop them all in together it can be a disaster. That has to be done delicately, but there's plenty of room to do it."

True. The tones are very different. Maybe not quite as different as dropping Deadpool into the dark and earnest DC world of Batman and Superman, but in the same ballpark. Professor X does not do fourth-wall breaking or jerking off.

However, there's potential for the X-Men/Deadpool worlds to collide in an "X-Force" movie, and the major players have discussed that. As Collider described it, the comics X-Force team is "essentially a slightly darker, more aggressive version of the X-Men, with members including Deadpool, Colossus, Cyclops, Archangel, Wolverine, and Cable." Producer Simon Kinberg told Collider an "X-Force" movie could even be Rated R, like "Deadpool." So -- when that comes together -- fans will have to see how they balance the tones. It's not quite the same as introducing Deadpool to Jennifer Lawrence's Mystique, but we're ready for more Ryan Reynolds/Hugh Jackman, past Deadpool's debut in "X-Men Origins: Wolverine."

Meanwhile, "X-Men: Apocalypse" comes out May 27, "Deadpool 2" is in the works (featuring Cable), and the first "Deadpool" comes out on DVD/Blu-ray tomorrow (May 10).

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