Ackerley produced "I, Tonya," which starred Robbie as controversial figure skater Tonya Harding.
Robbie spoke about their decision to work instead of going on vacation during a 2017 interview with Extra.
"We did this film instead of our honeymoon," she said. "There were times we were sitting in a car parked in Atlanta freezing cold being like, 'We should be on a beach right now. We should be on a honeymoon. What are we doing?!' Following our dream."
After filming "I, Tonya," Robbie and Ackerley went to Tahiti for their honeymoon — where they ran into Ellen DeGeneres, her wife Portia de Rossi, and Barack Obama.
Robbie recalled their embarrassing encounter on the private island during an appearance on "The Ellen DeGeneres Show" in January 2018.
The two couples and the former president of the US ended up together at a gym on the island, and the experience was particularly embarrassing for Ackerley because he chose to wear extremely short, baggy shorts with nothing underneath.
"The whole thing was so absurd," Robbie said, explaining that Ackerley spent the entire stretching class trying not to reveal himself to the other famous people in the small gym.