Beckinsale has some romantic moments with her co-star Colin Farrell in new movie Total Recall, which was directed by her spouse Len Wiseman.
However, she told Ryan Seacrest on his KIIS-FM radio show that filming the scenes was worse for Farrell, who recently admitted that it was "a little bit creepy".
"I think he's trying to cover up how much he enjoyed it, to be honest with you," she joked. "I think he's feeling guilty, he's feeling dirty, he wants to get it off his chest.
"Actually, I've done worse things in front of my husband in other movies, so this sort of didn't really feel like a big deal. But I do think it tends to be worse for the third party, apparently."
Beckinsale also admitted that she is pleased that Wiseman has finished working on the movie now.
"It's not like we're coming home and discussing spreadsheets and the other one's not interested," she said. "We're both very interested in the movie and in the movie in general... But I'm glad I've got him back. Now he's finished editing the movie, it's nice to talk about other things too."
Beckinsale recently joked that she wants Total Recall to scare off her daughter's future boyfriends.