"Inception" is a movie that makes my head spin and my stomach sick. :)

thank you

Inception is used when you are referring to the establishment of an organisation, business etc. Begining is used either in a very abstract sense (long back,since time immemorial) or when you are talking of begining of time. Generally you dont say begining of a company (unless in casual talk), its inception.

Considering "beginning" only as a noun, it has a similar meaning to "inception", but "beginning" could apply to the initial portion of something extended. It could also refer to a first cause of something. "Inception" only carries the idea of creation or establishment. "Inception" comes from Latin. It is an academic word. "Beginning" is an Old English word with roots in proto-German.

They have the same meaning, but 'inception' is more likely to be used when you are talking about an idea. It also sounds more formal than 'beginning'.