Jennifer Garner, 52, shared her intense workout regimen on Instagram to get 'Marvel fit' for her cameo as Elektra in 'Deadpool & Wolverine.' Garner's training included boxing, Peloton rides, weight lifting, swimming, and more, all guided by her stunt double Shauna Duggins and trainer Beth Nicely. Garner mentioned that she had not used Elektra's sais since 2004 and had to significantly ramp up her fitness. The role was proposed by Ryan Reynolds and Shawn Levy while working on 'The Adam Project.' Garner expressed gratitude for reuniting with old friends like Hugh Jackman, Dafne Keen, Channing Tatum, and Wesley Snipes. She appreciated the opportunity to give her character an ending and relished the camaraderie on set.