- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
In 2366, during the Barzan wormhole trade conference, Mendoza served as gegotiator for the Federation. He almost died of pyrocyte poisoning, thanks to DaiMon Goss, during the conference. Riker took Mendoza's spot at the table.