Misc: What was the first ever talking film?

Questions

what is an example of a tree harvesting method in canada (s)?

what's the only base unit of measure still defined by an artifact?

what is an example of a tree harvesting method in canada (sel)?

peter pan says there's a place where "children never grow up", what's it name?

what spooky 1970's tv show marked steven spielberg's directorial debut?