Actors: Johnny Depp
Film: Secret Window (2004)

Take Johnny Depp, dress him in a robe, put him at a desk, have him stare despondently at a computer, and it looks more like a fashion ad than a portrayal of a writer. John Turturro, who plays the deranged villain, looks much more fit for the part. Even so, Mort Rainey has just suffered a psychotic episode and has retreated to this cabin to look pristine, play with a slinky, and slowly be consumed by paranoia. If it's to be assumed that only a writer has the motivation to solve this particular mystery, then there's the fact that John Shooter offers him three days to solve it, tells him not to go to the police, and then kills his dog with a screwdriver. No imagination necessary.