Too Short is adding filmmaking to his resume ... and he's already scored some Hollywood heavy hitters for his movie, "Freaky Tales," which recently premiered at the Sundance Film Festival.

He spoke to us Monday on "TMZ Live," about the "anthology horror-movie-thriller-comedy" ... which depicts 4 interconnected stories during 1987 Oakland, and heavily features his music.

The film serves as a "love letter to Oakland," and also mirrors Short's experience growing up there in the eighties -- and he tells us his emotional attachment to the project is even more significant because he's an executive producer and narrator for it.

He acknowledges it also means a lot to the others involved -- most noticeably its A-list cast that includes Tom Hanks, Pedro Pascal, Normani, and the late Angus Cloud. It's also directed by "Capt. Marvel" writers/directors Ryan Fleck and Anna Boden -- which is major.

After the movie's debut, Short took advantage of his time in Park City, UT ... deciding to hit the slopes for his first time.

He tells us he didn't need much convincing to give it a whirl, because he's always been adventurous and agile, even at 57.

While he mostly got the hang of it, things went downhill fast, literally, when he ended up on a mountain he couldn't navigate as a beginner -- forcing his ski instructor to rescue him.