As an independent producer would you prefer a Netflix-style cost-plus deal of an upfront profit 20%-30% in

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Question:

As an independent producer would you prefer a Netflix-style "cost-plus" deal of an upfront profit 20%-30% in return for losing all rights - or would you rather invest in the cost of production and get a share of any potential "back-end" revenues and sales?

Provide three reasons for analysis. Thanks