1: Discover Cillian Murphy's intense diet for "Oppenheimer" transformation with co-star insight.

2: Costar reveals Murphy's commitment to role through strict dietary sacrifices for Oppenheimer.

3: See how Cillian Murphy's sacrifice shines in his portrayal of Oppenheimer thanks to his diet.

4: Murphy's dedication to Oppenheimer role exposed through his extreme diet, as shared by co-star.

5: Learn about Cillian Murphy's sacrificial diet for Oppenheimer transformation from inside sources.

6: Discover the secrets behind Cillian Murphy's transformation for Oppenheimer through his diet regime.

7: Co-star sheds light on Cillian Murphy's intense diet for his Oppenheimer role.

8: Uncover the details of Cillian Murphy's rigorous diet for his transformation in Oppenheimer.

9: Explore how Cillian Murphy's commitment to Oppenheimer role was evident through his strict diet.