Moivie Posters

I am looking at movie posters to give me a general idea of what posters look like in the media and what makes people look and go Oooh I want to see/have that.

So far I have seen that movie franchises tend  to keep the same font throughout like the Spiderman movies although they changed actors the font stayed pretty much the same, beside the change with a couple of the letters , I believe they did this so people can recognise that it is the same brand