- Acting for Two: Kenji Ohba not only reprises his role as Retsu Ichijouji (Space Sheriff Gavan), he also reprises his two major roles in Super Sentai, Shirou Akebono (Battle Kenya) from Battle Fever J and Daigorou Oume (Denzi Blue) from Denshi Sentai Denziman. And of course, at the very end the three of them are standing together on-camera, with Daigorou's arm resting on Retsu's shoulder. For those who don't know, that is a VERY difficult shot to do, since they were filmed outside and not in a green screen studio.
- Milestone Celebration: Of the Metal Heroes' 30th year.
- Name's the Same: Gokaiger's Don and Don Horror, the Big Bad of the original Space Sheriff Gavan series. Although Don Horror doesn't appear in this movie, when Makuu Chief Asurada says that the blood of Don Horror is flowing through him, the Gokaigers lampshade this, saying they don't know who Don Horror is but their Don is more impressive, though Marvelous says that doesn't really matter either.
Trivia / Kaizoku Sentai Gokaiger vs. Space Sheriff Gavan: The Movie