Jennifer Garner “wasn’t Marvel fit” when she signed up for ‘Deadpool and Wolverine’. The 52-year-old actress – who ahs Violet, 18, Seraphina, 15 and Samuel, 12, with her ex-husband Ben Affleck – played Elektra in the superhero films ‘Daredevil’ and ‘Elektra’ in the early 2000s but when Ryan Renolds asked her to return to the role for the new film, she admitted that she had a lot of work to do physically before she could play the role. She wrote on Instagram: “We were on the set of ‘The Adam Project,’ and they gave each other this look they have that can communicate an idea, 20 pages of dialogu…