Continuity mistake: Colossus has a dent in his head which is sometimes there and in other shots has disappeared.
Factual error: The 7 barrels Wade is on are only 55 gallon drums, totalling 385 gallons, not the 1200 he states. He is also on kerosene, which is not high octane fuel and burns way more slowly than shown. (00:01:53 - 00:02:37)
Continuity mistake: Deadpool turns all but the last dial on his stove to the max setting in one shot, but in the next they are all turned different directions and the last one is turned as well.
Revealing mistake: Near the end when the orphans are exiting the building in the bus, you can tell they practised the sliding part. There are marks in the roof of the bus from previous takes.
Continuity mistake: Wade makes a red circle around Cable on the cartoon map which disappears between shots.
Continuity mistake: While Wade fights two guys at his apartment, he uses a pan to stop a punch with the two hands, but in the next shot he uses only one hand.
Other mistake: In Osaka while Wade fights the bad guy at the jacuzzi, he cuts a guy below his knee but the angle is incorrect.
Continuity mistake: While Wade is shooting the Japanese guy, the sword on his back disappears and reappears between shots.
Continuity mistake: At Hong Kong while Wade is being shot at, he jumps to the bar and leaves a blood stain on it which changes amount and position.
Other mistake: At the beginning, while Wade is lying on the barrels, he throws the cigar and causes the explosion. The problem is that the cigar gets in one barrel but another one explodes instead.
Continuity mistake: In the final fight, Deadpool says to Cable "did you feel that too?" and there's no-one behind them at all. Cable moves forwards to kill a guy on the ground, and a fraction of a second later, as Deadpool says "only best buddies execute paedophiles together" an orderly has appeared in the background, who gets shot.
Continuity mistake: When it starts to go slow motion and Cable begins to run for the gun you can see Deadpool in the corner running before the next shot where he turns standing, then begins to run. (01:48:31)
Continuity mistake: When Russell and Wade are shown into their cell, Wade makes a wisecrack, gets tased and falls to the floor writhing in pain. Russell is looking down at him and then turns to look out of the cell. When the camera cuts to the wide shot, Wade is instantly on his cot, lying quietly on his back with his arms folded. (00:34:50)
Answer: It is a possibility. In Japan, the showing of a person's genital area and/or pubic hair is considered obscene.