Better ways to validate using Func

public class Movie
    {
        public string Title { get; set; }

        public int ReleaseYear { get; set; }

        public int Length { get; set; }
    }

    public static class MovieValidator
    {
        public static bool IsValid1(Movie movie)
        {
            if (movie.Title.IsNullOrWhiteSpace()) return false;

            if (movie.ReleaseYear < 1900) return false;

            if (movie.Length <= 0) return false;

            return true;
        }

        public static bool IsValid2(Movie movie)
        {
            Func[] rules =
                                {
                                    m => m.Title.IsNotNullOrWhiteSpace(),
                                    m => m.Length > 0,
                                    m => m.ReleaseYear > 1900
                                };

            return rules.All(rule => rule(movie));
        }

        public static bool IsNullOrWhiteSpace(this string value)
        {
            return string.IsNullOrEmpty(value) || value.Length.Equals(0);
        }

        public static bool IsNotNullOrWhiteSpace(this string value)
        {
            return !value.IsNullOrWhiteSpace();
        }
    }