Jennifer Lopez and Alex O’Loughlin on the set of The Back-Up Plan

I just posted a video of Jennifer Lopez and Marc Anthony’s twins, Max and Emme, on the set of her upcoming movie, “The Back-Up Plan.” Below are a few pics of Lopez and co-star Alex O’Loughlin. It’s a romantic comedy about a woman who conceives twins through artificial insemination, and then meets her dream guy that same day. Set for a Jan. 22, 2010 release, the movie also stars Donal Logue and Eric Christian Olsen.