Transformers 3: 10 Replacements For Megan Fox

Amanda Seyfried

She's Optimus Prime: Seyfried offers something a little different: she’s hot in a floaty, pretty way rather than Fox’s full-on sizzle, and after a solid record of lower profile films she’s ready for a crack at a summer tentpole.

Gemma Arterton

She's Optimus Prime: A genuine contender. The Brit starlet is currently riding a wave of blockbusters that includes Quantum Of Solace, Clash Of The Titans and Prince Of Persia, and that doesn’t look like breaking just yet.

Vanessa Hudgens

She's Optimus Prime: Another post-franchise starlet primed for a pop at the big time. Hudgens would offer a different chemistry with co-star Shia LaBeouf, giving him more giggles and drama to bounce off.

Zoe Saldana

She's Optimus Prime: Saldana is smoking hot, super confident and has some of the same imposing physical presence as the departing Fox. Plus, with her blockbuster experience from Star Trek and the mighty Avatar, she knows her way around a green screen.

Melonie Diaz

She's Optimus Prime: A leftfield choice, but Diaz would bring a freshness and – who knows? – even some acting to the role. Her CV is littered with sparky parts in well-regarded indie flicks…

Mary Elizabeth Winstead

She's Optimus Prime: We can really see this one. Winstead has the looks and the experience, but also a softer quality than Fox – a twinkling smile that could give her potential partnership with Shia LaBeouf a splash of pizazz.

Carey Mulligan

She's Optimus Prime: Not only is Mulligan completely adorable, she's been picking up serious press Stateside, and is currently dating prospective co-star Shia LaBeouf.

Kristen Stewart

She's Optimus Prime: The Twilight series has given Stewart a platform of notoriety and box office success that’ll surely mean she ends up leading a blockbuster sooner rather than later.

Ellen Page

She's Optimus Prime: Another choice that would give the new sequel a little edge – the indie princess is cute as a button, and could match Shia for laughs.

Ashley Greene

She's Optimus Prime: She might play second fiddle to Kristen Stewart in the Twilight flicks, but Greene is hotter and more watchable than her co-star, and has received just as big a profile boost.