Major movies seem to rely on the same group of actors over and over again.
Every new blockbuster seems to have a few familiar faces in it. The actors are usually talented, but after a while it starts making movies feel smaller. There are thousands of actors trying to get their break, yet the biggest productions keep going back to people who are already famous.
One of the best things about watching an older movie is seeing actors who weren't famous yet. There are faces you don't recognize, and that makes the characters feel like actual people instead of celebrities playing another character.
Studios obviously want recognizable names because they sell tickets, but there should be more room for new actors to get major roles.