Sarah Jessica Parker Greg Kinnear i don't know how she does it snow film set movie kids boots kiss jacket Sarah Jessica Parker Greg Kinnear i don't know how she does it snow film set movie kids boots kiss jacket

Sarah Jessica Parker and Greg Kinnear are showing what good chemistry on screen looks like. Whoa ... get a room!

The two stars filmed a kissing scene in snowy New York for their upcoming comedy I Don't Know How She Does It.

In the flick, Parker plays finance executive Kate Reddy ... a breadwinner who supports her husband and two kids. Also in the movie: Christina Hendricks, Pierce Brosnan, Kelsey Grammer, Olivia Munn and Gossip Girl's Jessica Szohr.

Now let's get back to that smoochfest between Sarah and Greg. We'd call that taking your craft very seriously!

See Ms. Parker on set with her younger co-stars ... after the jump.