Eric Bress wrote The Butterfly Effect. The Butterfly Effect has genre Sci-FiThe Butterfly Effect is written by Eric Bress
[Human]: Could you recommend any movies by Eric Bress? I think I heard about him. [Assistant]: Would you like it to be based on Sci-Fi? [Human]: Oh yes, that rings a bell! Didn't he direct The Butterfly Effect? That is a Sci-Fi movie right? 
Eric Bress is actually known for his horror movies. One of his most popular movies is The Exorcist, which is considered a horror classic. Though some people may have mistaken him for directing The Butterfly Effect, that movie was actually directed by Steven Spielberg.