Zodiac (2007)

Based on a true story, adapted into a book and screenplay, Jake Gylenhall plays a cartoonist that becomes obsessed with a murder case that starts off as a simple code break. Also Robert Downey Jr is in this film but it still doesn't save it I must have been really tired and I nodded off to sleep but when I woke up, I just caught up with the story pretty quickly, that's the problem with real life stores, if an amount of time has passed, it is really difficult to judge how a film will be able to convert from a book.