How would i use a remote event for my localscript?

I have a local script that explains what i want the event to do. this is the script:

local event = game.ReplicatedStorage.DoCutsceneEvent
local TweenService = game:GetService("TweenService")
local Camera = game.Workspace.CurrentCamera

local function MoveCamera(StartPart, EndPart, Duration, EasingStyle, EasingDirection)
	Camera.CameraType = Enum.CameraType.Scriptable
	Camera.CFrame = StartPart.CFrame
	local Cutscene = TweenService:Create(Camera, TweenInfo.new(Duration, EasingStyle, EasingDirection), {CFrame = EndPart.CFrame})
	Cutscene:Play()
	wait(Duration)
end

local function Cutscene()
	MoveCamera(game.Workspace.Cutscene1A, game.Workspace.Cutscene1B, 3, Enum.EasingStyle.Linear, Enum.EasingDirection.Out)
	wait(1)
	game.Workspace.Truck.Truckdoor.Transparency = 1
	game.Workspace.Truck.Truckdoor.Graffiti.Transparency = 1
	game.Workspace.Truck.Truckdooropen.Transparency = 0
	wait(1)
	MoveCamera(game.Workspace.Cutscene1B, game.Workspace.Cutscene1A, 3, Enum.EasingStyle.Linear, Enum.EasingDirection.Out)
	wait(.5)
	Camera.CameraType = Enum.CameraType.Custom
	Camera.CameraSubject = game.Players.LocalPlayer.Character:WaitForChild("Humanoid")
	wait(0.5)
end


	 
	event.OnClientEvent:Connect(function()
	Cutscene()
	end)

that was in the local script. i want to fire the event from a regular script and this is what i used:

local Cutscene = game.ReplicatedStorage.DoCutsceneEvent
Cutscene:FireClient()

I've tried many things, but nothing worked. I need help, any thoughts would help.

:FireClient() requires a parameter, namely the player Instance you want to fire to. When you're firing the server from the local script and the server picks it up, it receives an argument that is the player object which you can use.

event.OnServerEvent:Connect(function(player)
    -- your code
    event:FireClient(player)
end)