McAvoy remains the only cast member to be confirmed, but there is one particularly juicy rumour currently doing the rounds in Hollywood, that has Kick-Ass star Aaron Johnson set to re-team with director Matthew Vaughn.

The theory stems from a picture that emerged of Johnson and McAvoy heading to the hospital where Vaughn’s wife (supermodel Claudia Schiffer) had just given birth to the couple’s third child. It might look tenuous at first, but consider also that Johnson recently auditioned for Jack The Giant Killer. That’s right, the same Jack The Giant Killer that Brian Singer is directing.

Still not convinced? Well the word amongst Hollywood tittle-tattle types is that Singer remains heavily involved in First Class through his role as producer, and has been using his Jack The Giant Killer auditions as an opportunity to run the rule over potential candidates for the role of Scott Summers, AKA Cyclops.

Plenty of ifs and buts to this one then, but we reckon there’s a strong chance that Johnson could be cast. As a 19 year-old, he certainly fits the age profile, and would be a believable apprentice to McAvoy’s professor. Watch this space…