"I had a lot of jealous friends, a lot of my buddies were like, 'I hate you, I hate what you get to do,'" he told Access Hollywood's Maria Menounos. "I wasn't really worried about it, I think it all went fine."
Still, the actor added that movie would appeal to jaded singles, as well as couples on the romantic holiday.
"It doesn't over-mushify it," Ashton said. "There are some people in the movie that are really cynical about [Valentine's Day]."
As for his real-life love, wife Demi Moore, Ashton said that the couple has decided to do something different this year.
"Demi and I have agreed that instead of doing the big thing for each other, we are going to celebrate by sharing our love with other people," he said. "We launched our foundation, the DNA Foundation, on Monday to help trafficking victims — we have this group in New York, GEMS Girls… who don't have someone to be their Valentine this year. So Demi and I are going to send flowers to all of these girls, as many as we can, and make them our Valentines."
The DNA Foundation — short for Demi & Ashton Foundation — "aims to eliminate child sex slavery worldwide," according to its Web site. CLICK HERE to find out more.
"Valentine's Day," which also stars Julia Roberts, Jamie Foxx, Taylor Lautner, Jennifer Garner and almost a dozen others, is due on February 12.
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PLAY IT NOW: Demi Moore's Advice On 'How To Rule The World From Your Couch' (October 19, 2009)
PLAY IT NOW: Ashton Kutcher Talks Plane Emergency: 'When It's My Time To Go, I'll Go'