How do you select the parent(s) based on child properties? - ef-core-3.1

Question

My Parent (movies) have child collections on them (actors), how do I select all the movies that have Actor A and Actor B or even Actor C etc...? I can do manage a simple query to find all Actor A movies etc...but doing (n) Actors seems unclear. My model is below:
public class Movie
{
public int MovieID { get; set; }
public string MovieTitle { get; set; }
public ICollection<MovieActor> MovieActors { get; set; }
}
public class MovieActor
{
public int MovieID { get; set; }
public Movie Movie { get; set; }
public int ActorID { get; set; }
public Actor Actor { get; set; }
}
public class Actor
{
public int ActorID { get; set; }
[DisplayName("First Name")]
public string ActorFirstname { get; set; }
[DisplayName("Last Name")]
public string ActorLastname { get; set; }
public ICollection<MovieActor> MovieActors { get; set; }
}
My dbContext config for that object looks like this:
public void Configure(EntityTypeBuilder<MovieActor> builder)
{
builder.HasKey(ma => new { ma.MovieID, ma.ActorID });
builder.HasOne(ma => ma.Movie)
.WithMany(m => m.MovieActors)
.HasForeignKey(ma => ma.MovieID);
builder.HasOne(ma => ma.Actor)
.WithMany(a => a.MovieActors)
.HasForeignKey(ma => ma.ActorID);
}

Answer 1

Assuming you want movies that have the specified actors in the same movie, you can do this.
private List<Movie> GetMovies(params int[] actorIds)
{
IQueryable<Movie> movies = dc.Movies;
foreach (int actorId in actorIds)
{
movies = movies.Where(w => w.MovieActors.Any(a => a.ActorId == actorId));
}
return movies.ToList();
}
or if you're wanting all movies that any of those actors have been in
return dc
.MovieActors
.Where(w => actorIds.Contains(w.ActorId))
.Select(s => s.Movie)
.Distinct()
.ToList();
There are many ways to access the data, not saying these are the best performance wise but they do give you options.