Jennifer Garner Starring in 'Men, Women & Children'?

Jennifer Garner holds her son Samuel, 18 months, while visiting some horses and stopping by the Brentwood Country Mart on Wednesday (September 4) in Santa Monica, Calif.

The 41-year-old actress was also joined by her four-year-old daughter Seraphina, who she took shopping at the Petit Ami store in Pacific Palisades the day before.

Jennifer is reportedly set to join Jason Reitman‘s new movie Men, Women, & Children along with Adam Sandler and Rosemarie DeWitt. The director is trying to assemble a cast right now, but no offers have been made, according to THR.

The film is about the “sexual frustrations of junior high school students and their parents in the Internet age.” The plan is to shoot the film in November.

Also pictured inside: Jennifer on the set of her movie Alexander and the Terrible, Horrible, No Good, Very Bad Day with co-star Steve Carell on Thursday (September 5) in Pasadena.

20+ pictures inside of Jennifer Garner out and about…