Development of a Deadpool film starring Reynolds began in February 2004, before he played the character in X-Men Origins: Wolverine in 2009. Reese and Wernick were hired for a spinoff in 2010, and worked with Reynolds to adapt the character more faithfully (including his fourth wall breaking) after the portrayal in Wolverine was criticized. Miller was hired in 2011. An enthusiastic response to leaked test footage he created with Reynolds led to a green light from Fox in 2014. Additional casting began in early 2015, and filming took place in Vancouver, British Columbia, from March to May of that year. Several vendors provided visual effects for the film, ranging from the addition of blood and gore to the creation of the CGI character Colossus.
