It seems odd to have to declare a spoiler alert for a romantic comedy, but here's an **"About Time" spoiler alert:***

The couple, Mary and Tim stays together throughout.

I know, I know, shocking, right? That's how co-lead Rachel McAdams feels about the film, which hit theaters over the weekend. Promoting the film, the actress discussed whether "rom-com" or romantic comedies are a dirty word -- which can partially be attributed to some predictable elements that otherwise split up or threaten romantic leads.

McAdams said she loved Richard Curtis' script because of the "surprises," that the "love story doesn't fall apart. That's not where the drama is," she said. "We get to watch this couple stay together."

Her co-star Domhnall Gleeson shares in the many intimate scenes, and not just the sexual ones: "About Time" follows almost a whole adult life, including births and deaths and illness. McAdams said that, too, is Curtis' gift, "He's the best at not glossing over the really heartfelt stuff, and undercutting it with humor too.

Check out the rest of our interview above, on fun costumes and filming intimacy in front of dozens of people.

Also watch my chat with Curtis, on "About Time" being his last film and on the flick's musical moments.