After alien invasions and Samuel L. Jackson appearances, time travel is the next best plot device Hollywood can inject into a film to maximize audience attendance.
Later this summer, Joseph Gordon Levitt and Bruce Willis will appear together in Looper about an assassin sent back in time to off himself. As a fan of the genre, I'll no doubt see both of these movies -- only to be disappointed as soon as the theater lights go up.
The esteemed Dr. Emmett Brown once said that time travel was too dangerous to be used - whether for fear of ripping the space time continuum or simply angering obsessive dorks over plot inconsistencies.
These kinds of stories are hard to pull off, but with each passing blockbuster, time travel rules become blurred and logic falls to the wayside in favor of a convenient deus ex machina.
The devil is always in the details, so the following serves as a deconstruction of some of the most popular, but greatest offenders in the time travel genre.
3. Back To the Future
2. The Terminator Series
Aside from oh-so many inherent paradoxes and the two crappy sequels that completely demolish James Cameron's carefully crafted canon, the main problem with the Terminator movies is Skynet's time travel technology.