Low-budget productions exploit amateurs by dubbing their lines to avoid pay

Evidence

I made my film début with Emilio Estevez in the cult classic, Repo Man, directed by Alex Cox. By the time they got around to shooting my scene, the low budget film ran out of money but Alex shot my scene anyway. In the final cut it looks like I am saying my lines but in post production Alex cut the sound of my dialogue and used a principal actress who had already been paid for a looping day to dub my lines. That way the production got away with not paying me the SAG principle rate plus future residuals. — Dolores DeLuce, Blow Jobs, 269