Deadpool appeared in "X-Men Origins: Wolverine". That is to say, Deadpool appeared in the movie "The Wolverine 1". Among them, Deadpool appeared as the final BOSS in the movie "X-Men Origins: Wolverine". Of course, he also appeared in the early stages of the movie. The one with the knife to chop bullets was also Deadpool. Expanded information
1. Introduction to "The Wolverine 1":
"The Wolverine" is a superhero movie released in 2009, adapted from Marvel Comics and is the title of "X-Men" A prequel to the series, the story takes place before the first film of "X-Men".
Logan named himself "Wolverine", and his skeleton was transformed to be indestructible, and his natural bone claws became diamond claws. The transformed Wolverine was also brainwashed by the "Weapon X" organization. After Wolverine woke up, he killed the people of the "Weapon Wolverine leaves after a narrow victory.
2. Introduction to Deadpool in "Wolverine 1":
One of the mutants, he has the same healing ability as Wolverine, likes to joke, and is only interested in profit. He voluntarily joined the Weapon X program due to an incurable disease. He got the ability to regenerate as he wished, but the price he paid was losing his appearance and being tortured as a failure. He is a character who is both good and evil. He has superhuman strength, endurance, speed, is proficient in various weapons, and is good at fighting skills.
Reference: Wolverine - Baidu Encyclopedia