Johansson, who got engaged to boyfriend Romain Dauriac recently, said the new film is about a womanizing porn addict looking for love, reported E! online.
"We all are guilty of holding our partner or our imaginary partner up to these standards that are sort of impossible to fulfill.
"It would be much easier if the people we fell in love with behaved the we wanted them to. I've learned over time that what makes life interesting, relationships interesting, are the complexities of relationships and people and the fact that we can become more evolved ourselves if we are forced to compromise and accept the differences amongst one another," she said.