Jim Carrey has been in a lot of movies! It's hard to give an exact number, as it depends on how you define "movie" (e.g., do you include voice-over roles, cameos, etc.).
However, according to IMDb, he has 67 acting credits as of today, November 16, 2023. This includes films, TV shows, and even video games.
If you're looking for just his live-action films, it's closer to 50.