A biopic about Hollywood legend Jimmy Stewart, titled 'Jimmy,' is in the works. 'Riverdale' alum KJ Apa will play the late Oscar winner, with Jason Alexander, Max Casella and Jen Lilley also in the cast.

Apa’s casting as Stewart for the biopic was announced on August 5. The film will chronicle Stewart’s early career days and work as a combat pilot in World War II, leading up to him starring in the iconic 1946 film It’s A Wonderful Life.

KJ Apa has signed on to star as James Stewart in “Jimmy,” an upcoming biopic about the “It’s a Wonderful Life” legend.

In an era replete with major celebrity biopics, a Jimmy Stewart movie is now in the works, and it has chosen Riverdale's KJ Apa as its main star.

Riverdale” star KJ Apa joins TODAY’s Jenna Bush Hager and guest co-host Erin Andrews to talk about his new rom-com, “The Map That Leads You,” where he plays a globe-trotter whose journey takes an unexpected turn when he meets a girl,

KJ Apa is stepping into the shoes of a Hollywood legend. The Riverdale star has officially signed on to play legendary actor James Stewart in an upcoming biopic titled Jimmy . The film will explore St

Riverdale's KJ Apa will star as Jimmy Stewart in the biopic 'Jimmy,' sparking mixed fan reactions on social media about the casting announcement

The biopic about beloved Hollywood icon Jimmy Stewart, fittingly titled JIMMY, just cast KJ Apa in the lead role.

Apa probably won’t need a lot of prepwork beforehand; he’s got plenty of experience with flashbacks and being a 1940s icon.

KJ Apa, of "Riverdale" fame, has signed on to star as WWII veteran and "It's a Wonderful Life" star, Jimmy Stewart.

What makes the scene more poignant is that we now know Stewart drew his emotions in the scene from his experiences during World War II. It is this period of his life that will be the focal point of an upcoming biopic.