Sam Witwicky (Shia LaBeouf) fell for Megan Fox's mechanically inclined Mikaela Banes in Michael Bay's first Transformers flick and they hung on even as Sam went off to college in Transformers: Revenge of the Fallen. But Transformers: Dark of the Moon features Sam moving on to Carly (Victoria's Secret model, Rosie Huntington-Whitley). But Sam's not entirely to blame; Bay said he fired Fox at producer Steven Spielberg's request after she compared her director to Hitler. Fox has said she left of her own volition.
Next Lethal Weapon: From Secretary to Internal Affairs Investigator