Does it matter that most films offer such an unrealistic depiction of usability? Mainly, no. A movie’s purpose is entertainment, not task performance. So, go ahead and employ user interfaces and interaction techniques that are entertaining and would never work in the real world.
Films are littered with so many other unrealistic plot details: you’d imagine, for example, that the ability to shoot straight might actually be a primary job requirement of Imperial Stormtroopers.
In the film context, unrealistic usability is only to be expected. –Jakob Nielsen –Usability in the Movies — Top 10 Bloopers (Alertbox)
A great pop culture-meets-usability article.