In films like "The Switch," "The Object of My Affection," "Marley & Me" and "Just Go With It," Jennifer Aniston has gone from the "Girl Next Door" to the "Mom Next Door."

In "The Switch," a woman (Aniston) approaching middle age yet still childless decides to get pregnant by artificial insemination, only to discover that the donor she chose may not be the father of her child in this comedy starring Jennifer Aniston and Jason Bateman.  The film is available on DVD, Blu-ray and download on March 15.

This gallery highlights her most memorable moments as a mom on film:

"The Switch"

"Just Go With It"

"Marley & Me"

"The Object of My Affection"