I’m new to coding and I’m trying to figure how to use user input. Right now my code is not working. I want to have the user input added to the movie list.

//Creating the welcome screen  
string Titlescreen = "Welcome to Movie list \n\t Please choose an option \n\t 1. Display Movie list \n\t 2. Add Movies to the List\n\t 3. Show movies I've watched\n\t";
//Creating movie list
var Movies = new List<string>();

// Displaying Welcome screen and gather user input
Console.WriteLine(Titlescreen);
string userChoice;
userChoice = Console.ReadLine();
numberChoice = Convert.ToInt32(userChoice);

if(numberChoice == 1)
{
    foreach(string movie in Movies)
    {
        Console.WriteLine(movie);
    }
}
else if(numberChoice == 2)
{
    var userChoice = Console.ReadLine();
    Movies.Add(userChoice);
}