The pair has been dating since they met on the set of the Disney show in 2005 and they love nothing more than heading out to the movies.
But the young stars often end up critiquing the pictures afterwards.
Efron says, "Every time you go you can pick away at what you like. Me and Vanessa go to the movies a lot and when we're done we try and analyze the movie - what we liked about it. That way you're actively watching it.
"I hate it when people go, 'It was good' (or) 'I hated it'. (I like to) figure out what was new about it, what was innovative, what we had seen before, what was redundant... you also look at the other actors."