This woman knows how to take advantage of a situation!
She's always been very tongue-in-cheek has Gemma Arterton.
So there was a surprise in store for co-star Jake Gyllenhaal as they filmed their love scene for new flick Prince of Persia.
The Kent girl, 23, told us: "There's an unspoken no-tongues rule on set. But I got so carried away it kind of slipped out. Everyone said I was lucky to be snogging him, but he's the lucky one."
We wonder if his missus Reese Witherspoon would agree...
Honestly, can you blame her?
Gemma joins Emmy Rossum in the line of very smart woman who've seized the day - and the Gyllenmouth.
"I went over to him and said, 'Look, I know it's 9 a.m., but is it OK if I kiss you?' " Rossum recalls. When he consented ("He said, 'It's never too early!' "), she obliged. "I knew if I didn't do it, it would seem like I was scared. And I wanted to kiss him. He's very, very cute."
A history of Jakes movie kisses proves at least one thing...
...Jake kisses shouldn't be filmed in the dark! Let's hope PoP shines a light on Gemma's bold actions.
Now a look back at some Jake and Gemma non-kissing footage: