Dennis Leonard (sound editor) explained

Dennis Leonard is a sound editor. He was nominated at the 77th Academy Awards for the film The Polar Express in the category of Best Sound Editing. His nomination was shared with Randy Thom.^[1]

Selected filmography

(1988) - Post-Production Sound Engineer (uncredited)
All Dogs Go To Heaven (1989) - rumored to be Supervising Sound Editor (on IMDb)
All Dogs Go To Heaven 2 (1995) - rumored to be Supervising Sound Editor (on IMDb)
Species (1995) - Additional Sound Designer/Sound Editor (uncredited)
What Lies Beneath (2000) - Supervising Sound Editor, Skywalker Sound Administrator/Additional Foley Artist (uncredited)
Cast Away (2000)
Harry Potter and the Chamber of Secrets (2002)
Shrek 2 (2004)
The Polar Express (2004)
Harry Potter and the Goblet of Fire (2005)
Enchanted (2007)
(2008)
Horton Hears a Who! (2008)
A Christmas Carol (2009)
Merry Madagascar (2009)
Despicable Me (2010)
Rio (2011) - Additional Re-Recording Mixer (uncredited)
Cowboys & Aliens (2011) - Additional Re-Recording Mixer (uncredited)
Olive (2011) - Supervising Sound Editor (as Dennis "Wiz" Leonard)/Role: Doctor
(2012)
The Lorax (2012)
Flight (2012) - Sound Designer & Supervising Sound Editor (according to Soundworks Collection), Supervising Sound Editor/Re-Recording Mixer
Despicable Me 2 (2013)
Free Birds (2013)
War Story (2014) - Sound Designer/Re-Recording Mixer, Supervising Sound Editor/Re-Recording Mixer (according to Skywalker Sound and IMDb's bio pages)
Minions (2015)

Web site: The 77th Academy Awards (2005) Nominees and Winners . March 22, 2014 . oscars.org . dead . https://web.archive.org/web/20140610213020/http://www.oscars.org/awards/academyawards/legacy/ceremony/77th-winners.html . June 10, 2014 .