So, the five star movement was originally born as a "green-party" kind of movement, the 5 stars representing: public water, sustainable transport, sustainable d

So, the five star movement was originally born as a "green-party" kind of movement, the 5 stars representing: public water, sustainable transport, sustainable development, right to Internet access, and modernity. The movement was entirely born on the web, and refused to appear on traditional media like television and newspapers, as they believe traditional media to be undemocratic and corrupted. The focus of the movement is participatory democracy, so they coded an online platform where citizens can propose laws, discuss, and vote on them. These proposals are then brought to the parliament by the elected members of the movement. These are not career politicians, they are common citizens elected on the online platform based on their CV's. It's probably one of the first big experiments in direct democracy. So, to answer your question, they "believe in" what the majority of citizens believe in. The only constant is they believe in the democratic power of the web. I think it can be called anti-establishment as it was born from strong negative feelings against the current establishment, and it refuses alliances with any existing political party. It gathers people across the political spectrum, who are unhappy with the status-quo. It's a very interesting experiment, testament to the disruptive power of the web, as the managed to get ~30% with no presence on traditional media and no campaign financing.