Trivia: When Thor is strapped in the chair we can hear the music from the original Charlie and the Chocolate Factory; specifically an instrumental version of Pure Imagination.
Trivia: A Make A Wish child who visited the set suggested Thor's "friend from work" line about the Hulk to Chris Hemsworth.
Trivia: Taika Waititi said "I would say we improvised probably eighty percent of the film, or ad-libbed and threw in stuff" in an MTV news interview.
Trivia: Cate Blanchett chose to do the movie for her children who are Marvel comics fans. Her eldest son suggested she play Hela as a career boost.
Trivia: In order to keep a light yet collaborative mood amongst the cast on set, around 80 per cent of the dialogue in the movie was improvised.
Trivia: In the comics, the Grandmaster has blue skin. Taika Waititi opted not to color Jeff Goldblum blue for this film since he already previously played a blue-skinned character in the film Earth Girls Are Easy. However, you can see Grandmaster's fingernails are painted blue, possibly as a reference to his comic counterpart.
Trivia: Led Zeppelin's 'Immigrant Song' was chosen for the soundtrack because the lyrics mention Norse mythology.
Trivia: Chris Hemsworth bulked up to play Thor by working out 6-7 times a week and eating 6000 calories a day of a strict selection of foods.
Trivia: Cate Blanchett studied Capoeira (an Afro-Brazilian martial art) for her role as Hela.
Trivia: Anthony Hopkins originally didn't intend to return for this film, but upon reading the script, he changed his mind.
Trivia: Director Taika Waititi has said he had no desire to direct this movie or work for Marvel. He did so because he needed money.
Answer: If other people are worthy, they can gain the power of Thor (this is something that has happened in the comics), but Thor can muster that power alone. In his case, the hammer simply allows him to focus his powers.
How come then that in the first movie when Odin wants to remove Thor's power he "confiscates" Mjolnir? If Thor's power is intrinsically inside him, how could Odin remove it? Then, he reacquire those powers only after holding Mjolnir again, which implies Thor's powers come from Mjolnir. This is poorly explained in the movies.
Epigenis
"Poorly explained" doesn't make it a mistake. Odin suppressed Thor's innate powers and removed the hammer both symbolically and to prevent Thor from using it to reacquire his powers.