Is this whole war fake?

These are supposedly Ukrainian/British film crews shooting staged scenes. The first video is a “battle with Russians”, the second one is a “Russian prisoner” being interrogated. Weird stuff! Are the Russians doing the same? Or are those actually Russians pretending to be Ukrainians pretending to be Russians, in order to demoralize the other side? Or are those actually British actors pretending to be Russians pretending to be Ukrainian pretending to be Russian? Or is this video of fake shootings also fake? I’m confused...