Passage: In July 2011, Marvel Studios and Paramount Pictures announced the release of Thor on Blu-ray 3D, Blu-ray Disc and DVD. The discs were released by Paramount Home Media Distribution on September 13, 2011 in three editions: a single-disc DVD, a 2-disc Blu-ray-DVD combo pack, and a 3-disc Blu-ray/DVD/3D combo pack. All sets come with deleted scenes and a "Road to The Avengers featurette. The 2-disc and 3-disc packs includes a digital copy, the first in a series of Marvel One-Shots, The Consultant, and 7 behind-the-scenes featurettes.Branagh said that the DVD includes at least 20 minutes of deleted scenes. Branagh stated the footage contains "things like the Asgardian parents, Odin and Frigga, played by the beautiful Rene Russo, there's some beautiful scenes in there that I think people will enjoy. And certainly Thor and Loki interacting in different ways that just fill in a little bit of a back story, that was part of our rehearsal and research." In its first week of release, Thor took the number one spot on Blu-ray/DVD sales chart and topped Home Media Magazine's rental chart for the week.The film was also collected in a 10-disc box set titled "Marvel Cinematic Universe: Phase One – Avengers Assembled" which includes all of the Phase One films in the Marvel Cinematic Universe. It was released by Walt Disney Studios Home Entertainment on April 2, 2013.

Question: when did paramount home media release Thor on Blu-ray Disc?
September 13, 2011