Comment by thaumasiotes

> For each of those films, at least one company was and is earning $$$, but the talent doesn't get to make a revenue sharing deal with those companies.

That doesn't sound right. Traditionally, and in particular in the case of Forrest Gump, the distinction is between people who contract for a percentage of net profit (always zero) and people who contract for a percentage of gross revenue. The revenue is measured at the same point either way; it's just about whether you got suckered or not.