Almost exactly two months after our first report, The Grandmothers has added a few more to its cast. As Australian site If (via ThePlaylist) reports, Ben Mendelsohn (Animal Kingdom, The Place Beyond the Pines), one-time Lisbeth Salander candidate Sophie Lowe, Gary Sweet, and Jessica Tovey have all boarded the film, which already stars Robin Wright, Naomi Watts, James Frecheville, and Xavier Samuel.

Based on a story by Doris Lessing, the Anne Fontaine-directed, Christopher Hampton-written picture stars Wright and Watts as “two lifelong friends who fall in love with each others’ teenage sons.” I guessed back in December that Frecheville and Samuel would be playing the sons, due to pertinent factors like age and general physical appearance, and this latest casting makes it even more likely — unless the teenage boys will be played by a 42 and 54-year-old men. Now that would be interesting.

Production began today in Sydney, with a release in Australia and New Zealand being planned for next year. I’d expect the same for the United States, but I’ve been wrong before.

Any thoughts on this casting, or The Grandmothers in general?