WGA screenwriting credit system
en.wikipedia.org
en.wikipedia.org
Residuals are also paid to those credited, rather than those who worked as consultants
[0] http://www.huffingtonpost.com.au/entry/joss-whedon-speed_n_5...
[1]http://ir.lawnet.fordham.edu/cgi/viewcontent.cgi?article=123...
There have been quite a number of theatre strikes by various unions over the years. Everyone working together in person seems to make for a more militant environment - or maybe theatre producers are just worse employers.
Member for 12 years while working in Los Angeles. No strikes since the 60s, but that is mostly because of pattern bargaining (the Director's Guild tends to set the terms in their negotiations that other guilds follow). This is good since directors tend to have strong bargaining power; for example, they have negotiated better rates for content produced for streaming media, which were set lower than for traditional media back when Hulu was just an idea.
https://en.wikipedia.org/wiki/2007%E2%80%9308_Writers_Guild_...
The streaming media rates you mentioned, for example, were set after the 2007 WGA strike, not a DGA strike. Before this strike, streaming rates were not just set lower than traditional media, they were not set at all, and the proposal from the studios was... zero. Digital media (called "new media" at the time) was the most prominent issue in that strike.