William Brent

National Treasure: Book of Secrets

2007 · Charles Gates · ★ 6.4

Crank: High Voltage

2009 · Young Chev · ★ 6.1

L’intercanvi

2008 · Screaming Boy (voice, uncredited) · ★ 7.6

Bride Wars

2009 · (voice) · ★ 6.2

Opposite Day

2009 · Sammy Benson · ★ 4.3

You Again

2010 · Ben · ★ 6.3

Les aventures de Sammy. Un viatge extraordinari

2010 · Hatchling Sammy (voice) · ★ 6.0

Cop Dog

2008 · Robby North (as Billy Unger) · ★ 2.8

Children of the Corn

2009 · Additional Voices (voice) · ★ 4.5

Jack and the Beanstalk

2009 · Prince Charming · ★ 5.2

The Lost Medallion: The Adventures of Billy Stone

2013 · Billy Stone · ★ 5.5

Monster Mutt

2011 · Zack Taylor (as Billy Unger) · ★ 4.8

Rock Slyde

2010 · Young Rock (as Billy Unger) · ★ 5.4

The Invited

2010 · Additional Voices (voice, as Billy Unger) · ★ 3.6