Yesterday brought the news -- once suspected, now confirmed -- that Tom Cruise is strapping in for 'Mission: Impossible 5.' But here's the question: are you excited about this, or should they hang it up now?

The last film in the franchise, Brad Bird's 'MIssion: Impossible - Ghost Protocol' was unquestionably the most positively received 'MI' film yet, garnering rave reviews and almost $700 million at the worldwide box office. Those edge-of-your-seat sequences in Dubai, the energy brought to the table by new members Jeremy Renner and Paula Patton, the spot-on blending of humor into the action -- these elements made a tired series feel exciting again.

But here's the thing: most would credit Bird's effervescent direction for the fourth movie's success; the man brought to his first live-action feature the same quirky exhilaration he lent his Oscar-winning Pixar films 'The Incredibles' and 'Ratatouille.' This next film will be helmed by someone else, probably Christopher McQuarrie, who is an accomplished screenwriter, but whose last directorial effort, 'Jack Reacher,' was a mostly uninspired vehicle.