The best Isabel May movies and TV shows make it easy to see why she's touted as one of the fastest rising stars in Hollywood.

Keep scrolling for your guide to Hallmark Channel’s May 2025 movie lineup: Premiere Date: Saturday, May 3, at 8 p.m. ET.

The ‘Succession’ creator’s film, ‘Mountainhead,’ stars Steve Carell, Jason Schwartzman, Cory Michael Smith and Ramy Youssef.