The Matrix

'Inside Out,' 'The Matrix' and more: Ranking cinema's notable head trips

Whether you're talking about a film or a relationship, it's never easy getting inside someone's head.

Sure, directors have tried many tactics to achieve the former (hello, cheesy voice-over). But actually making private thoughts and musings coherent on-screen is never a simple task. It's even doubly difficult if a movie looks to create tension and meaningful narrative there.

Yet over the years screenwriters have been drawn again and again to stories set right in the noggin, in genres that include science fiction ("Inception," "The Matrix") and action-adventure ("Fantastic Voyage"). They try again this weekend, this time in the realm of the...