2. In the movie, Salman never exchanges his Indian currency. And he enters Pakistan, there he is eating at a Dhaba with Munni and paying to Dhabawala. We are sure that the Pakistani Dhabawala will not accept Indian currency.
3. In the movie, there was no way for Salman to find Munni’s as she could not speak. Rather then trying to get the address in a logical way from her. He goes to Pakistan and finally meets Munni’s family.