* Defining "starring" can be subjective: Some roles are more prominent than others. Is a brief cameo considered starring? What about a voice-over role?
* There are various databases: Different sources may list different numbers of films, and they may not all agree on what counts as a starring role.
However, a general estimate is that Vin Diesel has starred in over 30 films. This includes his most famous franchises like *Fast and Furious*, *xXx*, and *The Chronicles of Riddick*, as well as other notable roles in films like *Saving Private Ryan* and *The Iron Giant*.
If you're interested in a more specific list, you can check websites like IMDb or Rotten Tomatoes, which provide detailed filmographies for actors.