want to get into 3d animation

Whats the best free 3d animation software ? i really like doing animations on macromedia and stuff like that and i like to draw as well but i really want to get into 3d animation (my dream job is to work at pixar) but i dont no any free software that i could use any help or advice on software or 3d animation would be appriciated thanks.
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crafts better
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crafts better