Is he Santa Claus or isn't he Santa Claus? It's a brilliant question of faith and belief that's fueled the Santa legend for generations, and Edmund Gwenn taps into it perfectly as the department store Santa who may, in fact, be the real Kris Kringle. Gwenn won a best supporting actor Oscar for his role and even inspired a John Hughes-produced remake. But like the real Santa, you can't copy the original.
Los Angeles Times