Unlock the last 2 characters on Lego Indiana Jones?

Throughout the game there are hidden Star Wars characters. If you find all of them you can go to where you buy characters and you see you have unlocked Han Solo.As for the other character, you have to get 10 treasure boxes through the whole first movie.then you see that you have unlocked a secret level called Young Indy.When you finish the level you go to the characters and you have unlocked young Indiana Jones. Good Luck