Hugo won the Oscar for visual effects, the film's fifth award of the night, having won for Sound Editing, Sound Mixing, Cinematography and Art Direction.
The nominees were:
Harry Potter and the Deathly Hallows Part 2
Tim Burke, David Vickery, Greg Butler and John Richardson
Rob Legato, Joss Williams, Ben Grossmann and Alex Henning
Erik Nash, John Rosengrant, Dan Taylor and Swen Gillberg
Rise of the Planet of the Apes
Joe Letteri, Dan Lemmon, R. Christopher White and Daniel Barrett
Transformers: Dark of the Moon
Scott Farrar, Scott Benza, Matthew Butler and John Frazier.
Some Twitter reaction to the win:
Douglas Trumbull no visual effects nom for Tree of Life is biggest oscar snub of the night. Still, he's got lifetime achievement award.