"The Challenge" ("Vyzov" in Russian), is a 2023 space drama film shot on the International Space Station. It's the first feature-length film with actors shot in space. According to its IMDB page, the movie follows a surgeon who flies to the ISS to save a cosmonaut who suffers a heart attack.
On the topic of toothpaste, I developed a reaction to SLS - Sodium Laurel Sulfate. That's when I switched to Sensodyne, because it doesn't contain SLS. For awhile, Sensodyne was a problem and I began using Baking Soda. Then returned to Sensodyne after a few weeks.
Before this sensitivity, someone asked if I whitened my teeth because they were whiter. Using an electric toothbrush changed the color of my teeth for the better.
A Water-Pik helps the gums rejuvenate as does flossing.