Mila Kunis has been cast star opposite Justin Timberlake in the upcoming comedy,  Friends with Benefits.   If the plot for the film wasn’t easy enough to predict by its title, Variety tells us that Kunis and Timberlake will play two friends who “try to take their relationship to the next level”.  The film is written by Keith Merryman and David Newman and will be directed by Will Gluck, who directed the upcoming Emma Stone comedy Easy A. Filming is currently set to begin in July.You can next see Mila Kunis in Darren Aronofsky's ballerina drama-thriller Black Swan and Justin Timberlake later this year in David Fincher’s film about the creation of Facebook, The Social Network.  Hit the jump to see another photo of Mila Kunis being hot.