This has been in my head forever!

[Caffiend]

Sounds like Tron enmeshed in teen love!  Entering a virtual reality has been done a lot, with the "Matrix" as the pinnacle of this concept. My Millennial son would nominate "Scott Pilgrim vs the World."   So I would say you have to have something really compelling to make this work.

I'd say develop your triangle carefully with twists and turns. Make the girl a dumb blonde, who morphs into an authentic and deep lady--but who, at the end, is clever and trecherous.  Her BF turns out to be emotionally more legit than your lead character expects, and in the end gives her her comeuppance, dumping her.   Queen Bees often have less attractive gf's in their orbit.  Turn two of these homely chicks into Cinderellas, the new gfs of your lead character and your (former) adversary. 

Could be fun!

[seansshack]

could work. With him visualizing the scenes as he writes. With one of the scenes he can't get back out but is indeed trapped. so knows he is writing it, so tries to change events and writing to his own advantage

[jasonbice15]

It's called my Brain! Ha Ha JK.

Seriously though, It's the story of this film student who writes a script based on his life to impress his best friend/girl of his dreams who already has a jerk boyfriend. His instructor tells him that his characters are too unrealistic and that in order to get it made, he needs to find out why his characters do how what they do. As a last resort, our hero writes himself into the script and magically is actually in his movie, face to face with the character version of himself and discovers in time that maybe he is not the great person he thinks he is and that maybe the jerk boyfriend isn't such a jerk after all.

That's my start at least. I'm trying to condense it into an actual logline if anyone has any ideas. Also, any initial thoughts on the idea would be helpful as well. I have heard that there was another movie called "Adaptation" in which the great Nic Cage starred as a writer who wrote himself into his script but refuse to watch it for fear it be too similar to my own script.