VIDEO : Jennifer Lawrence And Chris Pratt Hit It Off In 'Passengers'

The chemistry between Chris Pratt and Jennifer Lawrence was essential for the new sci-fi romance "Passengers," since the two actors appear in almost every scene of the film. The duo had never worked together before and director Morten Tyldum "was apprehensive about the chemistry" at first. The Norwegian director said, "It's the big fear as a director, when you're making a relations film story, that the actors are going to hate each other." But Tyldum said he "just knew that something magical was going to happen when we put these two together - and it did."