LOS ANGELES — Drivers are being warned to avoid sections of a Southern California freeway that will be shut down this weekend for filming of the third installment of the “Hangover” movie franchise.

Sections of the 73 Freeway in coastal Orange County will see staggered closures until 7 p.m. today.

To the south, the freeway becomes a toll road.

The 2009 blockbuster “The Hangover,” about an ill-fated bachelor party trip to Las Vegas, earned over $400 million worldwide. Its 2011 sequel was also a mega hit.