Phil Grishayev's dream came true when he first visited Los Angeles as a teenager from Poland.

"I was so excited that I made a little map of 'Back to the Future' locations, 'Ghostbusters,' everything," he says, aiming to visit places where his favorite movies were shot instead of the beach or the Walk of Fame.

When he finally moved to Los Angeles as an adult, Grishayev continued to hunt down elusive scenes from films. This time, though, he recreates them down the same angle and positioning as seen in the original movie.

He compiles these images for his Tumblr, Dat Scene.

Many of these locations can be found online. However, in some cases it take meticulous sleuthing.

"You literally have to move each frame," he says, "see something that you might recognize from the city."

For example, to find the famous place where John Cusack's Lloyd Dobler holds up the boombox in, "Say Anything," he had to comb through North Hollywood Park where it was shot.

But, there had been some landscaping done in the decades since, so Grishayev had to figure out the spot by lining up the trees in the background.

There are still some elusive spots that he's hunting down, though.

"Right now, there's a scene from 'The Mask,'" he says.

In it, Jim Carrey's character goes on a date with Cameron Diaz at a park. He ducks behind a bush and returns as his alter ego, the Mask. He learned that it was shot in Hancock Park, but so far hasn't had luck finding the exact spot.

"I was walking around the park for an hour looking for that tree. They all look the same and all had the same height, but it just wasn't that one, so I'm still searching for it."