CETA, Canada-EU: http://www.michaelgeist.ca/2014/08/canada-shaped-copyright-r...

"Canadian reforms had an impact on the negotiations. Requirements to extend the term of copyright or create new rights for broadcasters and visual artists were removed from the draft text. Moreover, the digital lock rules and Internet service provider liability provisions were substantially re-written to better reflect the Canadian approach ... the “made-in-Canada” approach is gradually garnering increased attention around the world as a creative, viable alternative ... other countries have been considering adopting the Canadian model on issues such as Internet provider liability or the creation of user-generated content."

NAFTA, Canada-US-Mexico: http://www.barrysookman.com/2011/02/19/is-copyright-part-of-...

TPP, Canada-US-Mexico-Australia-New Zealand-Malaysia-Singapore-Japan-Vietnam-Brunei-Peru-Chile : http://www.michaelgeist.ca/2014/10/new-tpp-leak-canada-emerg...

"..the U.S. wants Canada to eviscerate many of the recent reforms found in copyright and counterfeiting legislation along with court rulings on patent protection. These demands focus on enhanced criminal liability for copyright infringement, eliminating the Canadian approach to Internet service provider liability, extending the term of copyright protection, and expanding patent protection. Canadian negotiators have thus far resisted many of the proposed changes, offering alternatives that are compatible with current law. Yet as the treaty negotiations continue, the pressure to cave to U.S. pressure will no doubt increase, raising serious concerns about whether the TPP will force the Canadian government to overhaul recently enacted legislation that it has steadfastly defended as reflecting a balanced, “made in Canada” approach."

Not sure about a US company releasing abroad. The US copyright holder could probably argue they violated their copyright during production if the film was produced in the US. Then again if the filming was done in London but paid for by the US company they would be alright I guess? Popeye may be an interesting case as he's still copyright in the US but not most other places.