International Schools for the kids (Santiago de Chile)

Hi, Terence here from Dublin Ireland - I'm moving to Santiago at the end of August with my wife and two boys (2 and 4). We're going to be living in Vitacura and are looking for an international school for the boys. Do the international schools take kids from 2 (playschool/montessori) and could the 4 year old start with this as well and then move on to real school in March Protected content ? Any suggestions would be greatly appreciated.
Cheers,
Terence