[1] DeLeeuw began his career in 1993 at Dream Quest Images and started out as a CGI technical director before becoming a digital effects supervisor on such films including The Mask, Crimson Tide, The Rock, Armageddon, Mighty Joe Young and Bicentennial Man.
In 2001, DeLeeuw worked as a co-visual effects supervisor on Reign of Fire alongside fellow DQI & TSL colleague Richard R. Hoover.
In 2015, he received his first Academy Award nomination for his work on the superhero spy thriller alongside Dan Sudick, Russell Earl and Bryan Grill.
During the first set of reshoots for Endgame, which occurred between early-September 2018 & October 12, 2018, the production split into four units with the Russo brothers taking one each and the other two being supervised by DeLeeuw and one of the film's editors Jeffrey Ford, respectively.
Endgame received praise for its direction, acting, musical score, action sequences, visual effects, & emotional weight, with critics lauding its culmination of the 22-film story and it grossed $2.798 billion worldwide, surpassing Infinity War's entire theatrical run in just eleven days and breaking numerous box office records, including becoming the highest-grossing film of all time from July 2019 until March 2021.