Simon Morris looks at three films that play with fantasy in contrasting ways. French film Titane was a sensation when it won the Palme D'Or at Cannes this year. An erotic dancer moonlights as a serial killer, and has closer than normal feelings for American muscle cars - where's her happy ending? Stars Vincent Lindon (Anything for her) and directed by Julia Ducournau (Raw). Venom: Let there be Carnage sees Eddie (Tom Hardy) still hosting alien being Venom, but this time he confronts a bad guy in the same predicament. Features Woody Harrelson (The Hunger Games) and Michelle Williams (My week with Marilyn), directed by Andy Serkis (Lord of the Rings). Petite Maman is a French "what if?" story about how an 8-year-old girl makes a new friend, who may be her mother at the same age. Written and directed by Céline Sciamma (Portrait of a lady on fire).