While "repacks" are often compressed to save space, they are usually sourced from the official Blu-ray, which originally contains the following features: Marvel One-Shot : Includes the short film "A Funny Thing Happened on the Way to Thor's Hammer" Behind-the-Scenes Featurettes Outfitting a Hero : Details on the iconic Captain America costume. The Transformation : Focuses on the CGI used to create "Skinny Steve". Behind the Skull

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The film follows Steve Rogers (Chris Evans), a scrawny but courageous recruit who is rejected by the U.S. Army due to poor health. He is eventually selected for a "super-soldier" experiment by Dr. Abraham Erskine, transforming him into the physically peak Captain America. Set against the backdrop of World War II, Rogers leads a unit known as the Howling Commandos against HYDRA, a rogue Nazi science division led by the villainous Red Skull (Hugo Weaving).