The couple split in 2015, and their divorce was finalised at the end of 2018, but are still regularly photographed together.
As for how the former couple co-parent, Affleck says they simply try their best. "I certainly try very hard. I'm lucky they've got a great mum, and she helps out a great deal with making sure that we co-parent in as good a way as possible…that's really the central preoccupation in my life, you know, the focus of my life is what I love doing. It's what makes me happy and the rest of the stuff kind of follows.”
Over the weekend, Affleck told Entertainment Tonight he felt sorry for Garner after their seven-year-old son, Samuel, was less than impressed with Garner's How to Train Your Dragon costume. "I felt so bad. She was devastated," he said. "She had gone to all these lengths to put on the costume."
On the topic of exes, Affleck also spoke of how he took inspiration from ex-girlfriend Jennifer Lopez and her current boyfriend Alex Rodriguez in the 10-day no-sugar, no-carb challenge. “I just did the A-rod 10-day challenge…it was a little bit tough, but I did it…it's awful for the first couple of days because I am definitely somebody who likes bread and sugar… it's terrible, you get through it and you're like I feel pretty good. Of course by the end of ten days, I had three bagels.”
WATCH: Ben Affleck Confirms He's Done Playing Batman.