Firefly

Australia - M (Recommended for mature audiences.)
M content can only be broadcast between 8:30 p.m. and 5:00 a.m. on any day, and additionally between 12:00 p.m. and 3:00 p.m. on school days.

Philippines - PG (Parental Guidance)
This program may contains scenes not appropriate for younger audience.

United Kingdom - PG (Parental Guidance)
Unaccompanied children of any age may watch. A 'PG' film should not disturb a child aged around eight or older. However, parents are advised to consider whether the content may upset younger or more sensitive children.

United Kingdom - 12 (12 Years)
Suitable for those aged 12 and over (VHS, DVDs and games only). Nobody under 12 may buy or rent a 12 rated DVD, VHS or game.