October 8, 2015 12:39 PM EDT

Steve Jobs, the new Aaron Sorkin-written, Danny Boyle-directed film about the late Apple co-founder, is out Friday, Oct. 9. The film is split into three acts, each centered around a different product release helmed by Jobs—the Macintosh in 1994, the NeXTcube in 1988, and the iMac in 1998. The movie, based on former TIME editor Walter Isaacson’s biography, avoids biopic birth-to-death tropes. But beginning in medias res can be confusing. Here’s a spoiler-free guide to who’s who in the film.

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