It’ll be another seven months before Oasis, the Britpop band led by Liam and Noel Gallagher, puts aside 15 years of sibling rivalry at a stadium in Cardiff, Wales, for a most unlikely reunion.

That would be the classic world of C.S. Lewis’ Chronicles of Narnia, which is in development for Netflix. Details have been scarce regarding the upcoming project, but a new report from Bloomberg ...