The following two movies show the final-state protons in neutrino interactions simulated with the GiBUU event generator. In the first, the proton masses (M_p) evolve with radial position (R) as they propagate outward from inside the nucleus. In the second, the proton momenta (p) change as they travel through the nuclear medium; the movie clearly shows that some protons fall back down the potential well before reaching the nuclear surface, a feature not visible in a single time snapshot. See further discussions in arXiv:2507.20539. (Movies by WEN Kaile (温凯乐) and LU Xianguo (卢显国).)