Warning! SPOILERS for Thor: Love and Thunder!
In Thor: Love and Thunder, Thor plants Stormbreaker in the ground, and the weapon starts to grow roots, but given that the handle is a part of Groot, will that grow a new version of the character? Stormbreaker was created thanks to Groot in Nidavellir when Thor was dying from taking the full force of the star. The weapon needed a handle, so Groot created one out of his own severed arm to aid in Thor's survival with a new finished weapon. As a result, the handle still contains some remnant parts of Groot, as is shown throughout Thor: Love and Thunder.
In Thor: Love and Thunder, Stormbreaker seems to have a mind of its own. Some hilarious moments in the movie involve the axe slowly creeping up while Thor is eyeing Mjolnir, a powerful weapon he used for a thousand years before Stormbreaker. There's a current/ex-significant other factor to the relationship, which follows the theme of the film, and Stormbreaker plays the often-forgotten current significant other to Thor's «ex,» Mjolnir. Thor's weapon Stormbreaker shows signs of humanoid jealousy towards Mjolnir, which is a very funny running gag in the movie. But where is this personality coming from?
Related: Thor Is Now Very Close To Being As Powerful As Odin
When Thor takes Stormbreaker out of the ground during the beginning of Thor: Love and Thunder and it has grown roots, it is actually not a new Groot growing back, but a plant that would have come out of Stormbreaker if allowed enough time. It certainly isn't growing a brand new big Groot, but due to its adolescent behavior, it is showing signs of being influenced by Teenage Groot's arm. In a recent interview (via CBR), director Taiki Waititi said that «you gotta remember
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