How to write a program in C#, which searches through object list by any of the movie data (using loops)?

I am doing simple console app in C# which has ability to search through movie library (object list) by any movie data (data type) using loop.

public static List<Movie> Movies= new List<Movie>() 
{
(1, "The Shawshank Redemption", "Drama", 1994, "Tim Robbins", "9.3/10")
(2, "The Godfather", "Crime", 1972, "Marlon Brando", "9.2/10")
}

Try smth but lost idea:

public static void Search()
        {
            Console.WriteLine("Enter input value: ");
            string userInput = Console.ReadLine();
            userInput.ToLower();

            //foreach (var m in movies)
            //{
            //    if
            //        (f.ID.ToString().Contains(userInput.ToLower()) || f.Title.Contains(userInput.ToLower()) || f.Year.ToString().Contains(userInput.ToLower()) || f.Genre.Contains(userInput.ToLower()) || f.mainActor.Contains(userInput.ToLower()) || f.IMDB_Rating.Contains(userInput.ToLower()))

            foreach (Film f in movies)
            {
                if(f.ToString().Contains(userInput))
                {
                    Console.WriteLine("Value find!\n");
                    Console.WriteLine($"{f.MovieForPrintOut}");
                }
            }

Already spent hours looking for best solution on youtube, stackoverflow, openAI, etc.
Thanks in advance,
greeting.

If I understand correctly, I think the idea you were stating was something like the code below.

Note that in some cases we probably want to do an exact match, like for Year or Id. Otherwise, there is no case-insensitive Contains method, but IndexOf takes a comparer, so we can use that method to check for partial matches in a case-insensitive way (it returns the index of the string to match if it was found, otherwise -1).

// Takes in a string that's used to find a list of movies that match
// The list of movies is returned
public static List<Movie> Search(string input)
{
    List<Movie> matches = new List<Movie>();

    foreach (var movie in Movies)
    {
        if (movie.Id.ToString().Equals(input) ||
            movie.Title.IndexOf(input, StringComparison.OrdinalIgnoreCase) >= 0 ||
            movie.Year.ToString().Equals(input) ||
            movie.Genre.IndexOf(input, StringComparison.OrdinalIgnoreCase) >= 0 ||
            movie.MainActor.IndexOf(input, StringComparison.OrdinalIgnoreCase) >= 0 ||
            movie.IMDBRating.IndexOf(input, StringComparison.OrdinalIgnoreCase) >= 0)
        {
            matches.Add(movie);
        }
    }

    return matches;
}

Sample usage:

List<Movie> crimeMovies = Search("Crime");

This should get you started, but the results will be a little unpredictable. Even though the Genre "Crime" was what the user wanted, any movie with "Crime" in the name will be returned, so you might get a Romantic Comedy named "Crimes of Passion" in the results. Something to think about...