The 'Pretty Woman' actress has joined the cast of the drama film alongside Lucas Hedges, who will take on the lead role of the troubled titular character who returns home unexpectedly one Christmas Eve much to the surprise of his family. Roberts won a Best Actress Academy Award for her 2000 movie 'Erin Brockovich', but is most known for 1990 motion picture 'Pretty Woman' alongside Richard Gere, and she recently admitted it has taken "years" to notice just how successful the film is.