The newlyweds were in London together while she was shooting her new film "Black Widow" and her man made it clear he didn't want her to give him any details about the plot.
"He doesn't like any spoilers, so I can't tell him anything and he doesn't even pry," Scarlett told SiriusXM's "The Jess Cagle Podcast with Julia Cunningham".
"When we were shooting this film in London, Colin was also there shooting 'Tom & Jerry', which worked out great 'cause we were together in the same city for a long time, which is rare. If I was in the middle of a big action set piece or sequence or whatever, he was just not wanting to hear anything about it."
"Of course he wants to know how was your day, but as soon as it would bleed into, 'Can you read this scene with me?' he was like, 'Am I going to get any spoilers...?' He wanted to know spoiler alert before we read lines together. Can you believe that?"
Scarlett and Collin tied the knot in October 2020. At the time, the couple broke the happy news on Instagram in a bid to boost donations.
"We're thrilled to break the news that Scarlett Johansson and Colin Jost were married over the weekend in an intimate ceremony with their immediate family and loved ones, following COVID-19 safety precautions as directed by the CDC (Centers for Disease Control and Prevention)," Meals on Wheels America said in a statement.
"Their wedding wish is to help make a difference for vulnerable older adults during this difficult time by supporting @mealsonwheelsamerica. Please consider donating to celebrate the happy couple by clicking the link in our bio," the organization concluded the announcement.
"Black Widow" hits cinemas and streaming site Disney+ next month, on July 9.