The Butterfly Effect (2004)

Evan Treborn (Ashton Kutcher), whose name sounds a whole lot like "event reborn" is haunted by his disturbing childhood memories, until he realizes he can go back and change them in The Butterfly Effect (2004). This sci-fi thriller kicks off with Evan as a little kid going through some horrific stuff including accidentally blowing up a woman with dynamite meant to ruin her mailbox, dealing with a creepy dad (Eric Stoltz) trying to film some adult films using him as an actor, and watching his dog get burned alive. The thing is, during nearly all of those events Evan had amnesia and doesn't remember exactly what happened. To deal with his memory issues, he was forced to write a daily journal. As an adult, he realizes he can read his journals and travel back in time to alter his past. He's convinced he can save his childhood love Kayleigh (Amy Smart), reform her psycho brother Tommy (Wiliam Lee Scott), and maintain a friendship with his best buddy Lenny (Elden Henson) to keep them from traveling down the paths that led to the horrific lives they ended up living. But every time he changes something he creates a worse situation for someone else. Keep the creepy dad from making his weird movies and he beats the crap out of Tommy, instead. Save the life of the woman who gets blown up and Tommy becomes a hardcore Christian, but Evan gets his arms blown off and Kayleigh hooks up with Lenny. No matter what he changes, Evan just can't seem to create that perfect life he imagines. In the sexiest version of reality, Evan's a frat boy lying in bed next to Kayleigh. When he freaks out and hops out of bed, we get a quick shot of his pecker escaping his undies, before he runs around in just a towel. The former male model's lean torso is amazing, but when his cock pops out of his boxers is a moment you'll want to revisit again and again. The effect of that scene will have you making some baby-butter fly!