What a world we live in. Its a world where writers must keep a careful balance of internet theories to please their audience. In fact, Deadpool's entrance into the Marvel Cinematic Universe pokes fun at this in its smartest moments. It also pushed the bounds of what you expect Disney to allow as the studio shows there is more wiggle room than expected since even half the adult audience might have to Google the meaning of jokes about pegging. Then it is too late, and they already have the money of the more prudish patrons in hand. I am impressed by how they worked in a wide swathe of the company's media output making "Loki" almost required viewing before going into this. Also, the bulk of the Fox films could help when some characters are marched out. Spider-man and Ghost Rider were the only corners of the bigger Marvel Universe not touched upon with only a few winks in the direction of Peter Parker. If you are touchy about spoilers then go see the movie, nothing happens that was not part of wider speculation and had not already been spoiled.
Reynolds and Jackman, make this a buddy cop team-up that works well against the absurdity of premise. The fight scenes between the two were some of the movie's strongest action sequences. The various incarnations of Wolverine worked better than the varied incarnations of Deadpool, I mean where was Gwenpool? Though like many aspects of the movie, If I blinked I might have missed it. Plotwise there was little surprise, stop this and save your world tropes. I have read critics praising the movie villain Cassandra Nova, and it really just felt like Emma Corrin was doing her best Tilda Swinton impersonation as there was no clear motive or really anything to flesh her out, I think Mojo would have made more sense and been a more inspiring link to the X-Men, would have given the baby Deadpool an ore sensical role. Paradox, worked better as his two-faced manipulations of things, with no real powers held more weight.
It would be misleading to say there were no X-men in the movie, as Colossus, X-23, and Gambit are all part of the team. I think what they were looking for is Storm, Cyclops, or Rogue, and get a glimpse at how they are going to be brought in. We can pretty much not rest assured that Henry Cavill is not going to play Wolverine, as look what happened with the Reed Richards casting in Dr. Strange, just enough fan casting then take a left turn. My favorite parts of the movie were the NSYNC dancing at the beginning and the brief appearance of the Hulk during the search through Wolverine variants. Overall the chemistry between the two leads was strong enough to carry the film in the classic Hollywood formula even when given the Marvel spin. It did not make apologies for being a super-hero movie which is a must for any such film.