Hemsworth said that working on the film they realized they had "filled in the blanks with what [they'd]
thought had happened" but "there actually wasn't a whole lot" of evidence to say what had actually happened:
"There actually wasn't a whole lot of evidence to definitively say, 'This is how they broke up. This is what happened.' It was left open for interpretation, which was great because it allowed us to go on this fun journey; 'What did their relationship look like when they were together? What did it look like when they were breaking up? Why did they break up?' It's some of the funniest stuff in the film."
Portman followed this up by mentioning that "it was really fun" to get to fill in those blanks and "imagine the parts of their relationship we hadn't seen:"
"It was really fun to get to imagine the parts of their relationship we hadn't seen...and the hard parts of a scientist dating an otherworldly Super Hero."
The Jane Foster actress also went into what it was like coming back to the
Thor franchise, praising director Taika Waititi for bringing "such a sense of fun" to the set:
"Taika brings such a sense of fun, mischief, and spontaneity to the set. It was a really joyful environment and we embraced the silly."
Another name Portman had nothing but good things to say about was
Tessa Thompson (aka Valkyrie). The two had played opposite one another before in Alex Garland's
Annihilation, and Portman was quick to say "[she loves] Tessa," noting she was "lucky to have a friend to play with on and off set:"
"We worked together on Annihilation and also quite closely with [the #MeToo Hollywood activist group] Time's Up, and I am always blown away by her brilliance, talent, and generosity. I truly love her and I was very lucky to have a friend to play with on and off set."