Her 2013

In the not so distant future, Theodore, a lonely writer, purchases a newly developed operating system designed to meet the user's every need. To Theodore's surprise, a romantic relationship develops between him and his operating system. This unconventional love story blends science fiction and romance in a sweet tale that explores the nature of love and the ways that technology isolates and connects us all.

Cast:

Spike Jonze
Alien Child (voice) 

Scarlett Johansson
Samantha (voice) 

Amy Adams
Amy 

Joaquin Phoenix
Theodore 

Bill Hader
Chat Room Friend #2 (voice) 

Brian Cox
Alan Watts (voice)