I'm trying to make a cutscene, but as it happens, I am very new and bad at the whole scripting thing.
Your question could use some more context, but i assume you want to lock the camera into a certain position.
Doing this is quite simple.
Step 1: Set the camera type to scriptable
workspace.CurrentCamera.CameraType = "Scriptable"
Step 2: Set the CFrame of the camera to where you want it to be:
workspace.CurrentCamera.CFrame = CFrame.new(Vector3 Position, Vector3 LookAt)
That's all thats required!