This much-anticipated film opens today. The historic journey of Jackie Robinson breaking the color barrier in the major leagues is a story that cannot be told enough and teaches a valuable lesson every time it is told. Mariano Rivera is the only major leaguer who wears 42 today and after this season the number will be fully retired never to be worn again deservedly so in honor of Jackie Robinson. 42 stars Harrison Ford, Nicole Beharie, Christopher Meloni, and Chadwick Boseman as Jackie Robinson.