'Sasquatch Sunset' Star Says Cast Went Through Bigfoot Bootcamp for Movie

There's a new Bigfoot movie coming out -- an indie comedy, in fact -- and one of the stars says he and his castmates had to learn how to become one with the missing link on camera.

We talked to Christophe Zajac-Denek Wednesday at LAX and asked all about this new film he's in called "Sasquatch Sunset" -- which has been a big hit in the festival circuit, and which is supposed to be a moving depiction of what life might be like for a Bigfoot family.

Christophe explains what went into the process of immersing themselves as bigfoots -- including what he calls a "sasquatch boot camp," where they learned vocalizations, walking techniques and lots of other wild behavior that might be attributed to a real sasquatch.

On the issue of whether he thinks Biggie's real ... Christophe says he 100% believes it could be true. So yes, he's a believer.

Our photog also asked Christophe what he made of the fact that Riley Keough -- who's a bombshell actress in real life -- was covered up in Bigfoot makeup for this flick ... and CZD tells us her natural beauty still shone through, even underneath the gorilla suit.

Pretty neat interview all the way around ... and it's definitely got us excited for this one.