Ahead of the arrival of John Wick 3 in theaters, Keanu Reeves stopped The Late Show With Stephen Colbert to open up about that famous horseback scene as well as working with actor dogs. The 54-year-old actor also spoke about the next Bill & Ted movie, which is tentatively titled Bill & Ted Face the Music. Reeves got philosphical when he was discussing the plot for the film.

"Right now it's called Bill & Ted Face the Music," he explained when asked to give a few hints about the project. "We're finding them however many years later, I think it's over 25, and they were supposed to write the song that was supposed to unite the world and peace and everything, but they haven't." The duo learn that they not only have to save the world, but they also have to save the universe, and they only have 80 minutes to write this song. 

Asked what would happen if they fail to write the song, Reeves added, "Well it's the end of the universe, and time, and the space continium."

Colbert replied by saying that it's about the two characters facing their own mortality, prompting him to ask the actor what he believes happens when people die.

"I know that the ones who love us will miss us," he replied.

Check out the full interview above.