The film stars Ritter, Kate Bosworth, Kristen Johnston, Geoff Stults, Jason Biggs, and Rachel Bilson.

Ritter plays the main character, Kim, who lives with her two roommates, Deena (Bosworth) and Laura (Bilson), in Los Angeles.

Kim brings Max along to work with her one day, as a dog service company assistant to her youth-obsessed boss Francesca.

They quickly form a relationship after Nicolas intently asks Francesca to have Kim take his dog in his house.

Kim asks her to take care of Max since she has a date with Nicholas that night, but tells her she can't.

[4] Richard Roeper of the Chicago Sun-Times called Life Happens "a much milder and more grounded comedy than the recent Bridesmaids, with a smart if somewhat contrived script".

[5] Gary Goldstein of the Los Angeles Times said "the film is rarely hijacked by its more familiar themes and sitcom potential.

Instead, aided by a nimbly voluble script by Kat Coiro and Ritter, it emerges as an amusing kaleidoscope of contemporary urban angst and romantic aspirations".

[6] Justin Lowe of The Hollywood Reporter liked the relationship between the women but thought the "execution dissipate[d] most of the film's potential".

[7] Elizabeth Weitzman of The New York Daily News rated the film three out of five stars, noting that the filmmakers "spice up the formula just enough to keep us watching".