Very early in his career, one of the first scripts Sylvester Stallone wrote was a biopic about the life and career of Edgar Allan Poe, and Stallone had even once considered playing Poe in the movie. Ultimately, he realized he was just wasn’t right for the part, but all these years later, the biopic (simply titled Poe) still remains one of Stallone’s dream projects.

In a recent Instagram video, Stallone vowed to one day finish the long-gestating script.

“It’s a never-ending journey, and I would hate myself if I don’t continue it at least to the best of my ability and try to see it, actually, come to fruition,” Stallone vowed. “To be able to go out there and say, ‘I accomplished it. It may have taken 45 years/50 years, but it’s done.’ Anyway. That’s what I’m working on. It’s been one of the great challenges of my life.”

You can check out the video below, along with an old test photo of Stallone in a Poe costume!