Hollywood star Mel Gibson is tipped to reunited with Mad Max director George Miller in forthcoming superhero move JUSTICE LEAGUE. A number of A'list stars are being linked with the film, which unites comic book heroes Superman, Batman , Wonder Woman and Flash. Ryan Reynolds is expected star as Flash and Superman TV star Tom Welling is tipped to take the part to the big screen. Latest gossip suggests Miller is already on board to direct and wants to Gibson and Bruce Willis as villains Max Lord and Lex Luther. A studio source tells IESB.net that besides Gibson and Willis, Miller is also chasing Leonardo DiCaprio, Jake Gyllenhaal, Jessica Alba and Scarlett Johansson for roles in the movie.