I have some, mostly from the XMen films all of which I've watched recently. Spoilers below, stop reading now if you haven't watched them.
- Origins: Wolverine:
Stryker is holding Silver Fox's sister hostage as leverage. Silver Fox could have touched his hand and asked him to release her sister at any time since that's her mutant ability, biatch!
In the end Deadpool fight, he has massive katana length, adamantium blades come out of his wrists. How is he supposed to use his elbows when they're retracted?
Adamantium can't be damaged, even by other adamantium, yet an adamantium bullet somehow can.
We meet Emma whose skin turns to diamond as a teenager. But Emma Frost was about ten years or so older in First Class, ~30 years earlier. Are there two mutants called Emma who turn to diamond?
- X-Men: In the last fight, Wolverine sustains some injuries which heal up quickly. He clutches Rogue's unconscious form to him (for some reason her powers were off initially without explanation despite that she's alive) and she absorbs his healing factor. Why then do his wounds reopen after they've already healed? More on this phenomenon below.
- XMen 2:
Wolverine is shot in the head by a trigger happy cop. He falls down and the bullet eventually "pops out". His skull is bloody adamantium! Did it somehow find the same exact hole Stryker made? If so, why didn't it cause any brain damage?
A lot of these ones are plot hole/continuity issues made evident by other parts of other films:
XMen 3: We see Moira McTaggert here near the beginning and post-credits. She's 30ish years old. In First Class, she's mid-late twenties. How did she barely age in four decades?
XMen 3: Magneto gets de-mutanted in the film's climax but has his full powers back in The Wolverine's post-credit scene. If the "cure" was only temporary, why was it even called a cure, let alone prompt all out war? And why were the XMen defending the people who weaponised it anyway?
XMen 3: In the post credits scene, Charles reawakens in a new (previously brain dead) body. Why is he still in a wheel chair, and how does he look exactly the same?
The Wolverine:
How does venom disable Wolverine's healing? Does it rewrite his genetic code? Why does he have to "give up" his gift to give it to the Silver Samurai? Wouldn't a drop of blood or cheek swab have contained all the info it needed? Our understanding of genetics makes the Wolverine plot very hard to accept.
DofP:
How does Quicksilver have over the ear headphones in the 1970s? Considering the speed he is moving at, how is it the tape is a) not jogging and skipping and b) playing at normal speed. He did everything in less than a second of realtime yet plays much more than a second of audio.
There's a "temporary" cure that heals Charles' legs at the cost of his powers. As mentioned above, how the hell do they unheal themselves after the damage is healed?
Not plot holes, but completely unexplained phenomena that really deserve explaining:
- The post credits scene of The Wolverine with Magneto (fully powered) and Charles (alive)...when did it happen? They knew about the sentinel trouble, yet clearly the apocalypse hadn't arrived yet. Were they meeting him and warning him of danger 10 years before it happened?
- Speaking of, Xavier and Magneto, alive, powered, together on the same side. No explanation, nothing!
- DoFP: Wolverine has adamantium claws again in the future. How did he get them, considering they were cut off in The Wolverine.
- Kitty somehow developed a pretty useful ability to send people's minds back in time without explanation.
A few others I could mention but they can wait for another time. I haven't even started on MCU films yet.
- Origins: Wolverine:
Stryker is holding Silver Fox's sister hostage as leverage. Silver Fox could have touched his hand and asked him to release her sister at any time since that's her mutant ability, biatch!
In the end Deadpool fight, he has massive katana length, adamantium blades come out of his wrists. How is he supposed to use his elbows when they're retracted?
Adamantium can't be damaged, even by other adamantium, yet an adamantium bullet somehow can.
We meet Emma whose skin turns to diamond as a teenager. But Emma Frost was about ten years or so older in First Class, ~30 years earlier. Are there two mutants called Emma who turn to diamond?
- X-Men: In the last fight, Wolverine sustains some injuries which heal up quickly. He clutches Rogue's unconscious form to him (for some reason her powers were off initially without explanation despite that she's alive) and she absorbs his healing factor. Why then do his wounds reopen after they've already healed? More on this phenomenon below.
- XMen 2:
Wolverine is shot in the head by a trigger happy cop. He falls down and the bullet eventually "pops out". His skull is bloody adamantium! Did it somehow find the same exact hole Stryker made? If so, why didn't it cause any brain damage?
A lot of these ones are plot hole/continuity issues made evident by other parts of other films:
XMen 3: We see Moira McTaggert here near the beginning and post-credits. She's 30ish years old. In First Class, she's mid-late twenties. How did she barely age in four decades?
XMen 3: Magneto gets de-mutanted in the film's climax but has his full powers back in The Wolverine's post-credit scene. If the "cure" was only temporary, why was it even called a cure, let alone prompt all out war? And why were the XMen defending the people who weaponised it anyway?
XMen 3: In the post credits scene, Charles reawakens in a new (previously brain dead) body. Why is he still in a wheel chair, and how does he look exactly the same?
The Wolverine:
How does venom disable Wolverine's healing? Does it rewrite his genetic code? Why does he have to "give up" his gift to give it to the Silver Samurai? Wouldn't a drop of blood or cheek swab have contained all the info it needed? Our understanding of genetics makes the Wolverine plot very hard to accept.
DofP:
How does Quicksilver have over the ear headphones in the 1970s? Considering the speed he is moving at, how is it the tape is a) not jogging and skipping and b) playing at normal speed. He did everything in less than a second of realtime yet plays much more than a second of audio.
There's a "temporary" cure that heals Charles' legs at the cost of his powers. As mentioned above, how the hell do they unheal themselves after the damage is healed?
Not plot holes, but completely unexplained phenomena that really deserve explaining:
- The post credits scene of The Wolverine with Magneto (fully powered) and Charles (alive)...when did it happen? They knew about the sentinel trouble, yet clearly the apocalypse hadn't arrived yet. Were they meeting him and warning him of danger 10 years before it happened?
- Speaking of, Xavier and Magneto, alive, powered, together on the same side. No explanation, nothing!
- DoFP: Wolverine has adamantium claws again in the future. How did he get them, considering they were cut off in The Wolverine.
- Kitty somehow developed a pretty useful ability to send people's minds back in time without explanation.
A few others I could mention but they can wait for another time. I haven't even started on MCU films yet.