Sure, being stranded alone in space may have been scary for Sandra Bullock in “Gravity,” but it’s not nearly as harrowing as being stuck in traffic. Watch the spoof trailer for the nail-biting “Gridlock.” Starring Kimmy Gatewood, Matt Corboy, Rebekka Johnson, Luke Sholl, Jim Festante, Lamonte Goode. Director: Matt Johnson. Writer: Gatewood. Producers: Corey Moss, Sam Kirkpatrick, Laura Dziamba. Production Supervisor: Michael McGarry. Editor: Taylor Gianotas. DP: Alan Gwizdowski. Prod designer: Dan DeLorenzo. A Principato-Young Entertainment/Electus/CollegeHumor Production. Find more Sketchy videos on Yahoo Screen.