 Goyer's script, which he tonally compared to Sam Raimi's work on the first two movies of the "Spider-Man" trilogy, was influenced by seminal comic book runs by Mike Baron, Mark Waid, and Geoff Johns.By 2007, however, Goyer dropped out of the project, citing creative differences with the studio.The same month Goyer revealed he was off "The Flash", Warner Bros. hired husband and wife screenwriting duo Michelle and Kieran Mulroney to script a "Justice League" film featuring Barry Allen, and Shawn Levy to direct a spin-off featuring Wally West.