Updating MVC view based on model updated in code

The following code increments a model property in MVC3 and updates the UI:

[HttpPost]
public ActionResult Edit(Movie model)
{
    var temp = model.Age + 1;
    ModelState.Remove("Age");
    model.Age = temp;

    if (ModelState.IsValid)
    {
        db.Entry(model).State = EntityState.Modified;
        
        db.SaveChanges();
        //return RedirectToAction("Index");
    }
    return View(moviedb2);
}