Could the Real Madrid superstar be headed for Chelsea?

A star-studded crowd was at hand, as Real Madrid superstar Cristiano Ronaldo showcased the premiere of his movie “Ronaldo” in London, on Monday.

The three-time Ballon d’Or winner was involved in several selfies, and engaged with reporters all night, as the 30-year-old rolled down the red carpet.

Ancelotti, Mourinho, Sir Alex Ferguson, Jorge Mendes, and several more were present at the premiere of "Ronaldo"

Cristiano Ronaldo, Carlo Ancelotti, Ronaldo, Premier

One of several questions posed to the Portuguese attacker was where his future lies, with the Blancos ace continuing his trend of refusing to rule out a Santiago Bernabeu exit.

Initially seen as a publicity stunt to increase the hype surrounding his movie, his stance may begin to worry Les Merengues fan who dream to see Cristiano retire at the Madrid giants.

Cristiano Ronaldo, Real Madrid, La Liga

However, though the player admits his current ties are with the 10-time Champions League winners, he hinted that his doors are still open to a return to the English Premier League, where he enjoyed six wonderful seasons with Manchester United.

When asked whether fans may see him in England once more, Ronaldo said: "Why not? I'm in La Liga now but as I've said a hundred times, the future nobody knows."

One could easily expect Ronaldo to return to the Red Devils, a club dear to his heart, having been coached by Sir Alex Ferguson, a man who he hailed as "my friend, my family, with me for the rest of my life".

Cristiano Ronaldo with former manager Sir Alex Ferguson

Cristiano Ronaldo, Sir Alex Ferguson, Real Madrid, Manchester United,

However, when speaking to Spanish outlet MARCA, Ronaldo hinted at a possible reunion with Chelsea boss Jose Mourinho, a man who he worked with during the Special One’s time as Real Madrid boss.

"Work with Mourinho again? Why not? I've got two more years on my contract with Real Madrid, but no-one knows what the future holds,” revealed the Real Madrid superstar.

With rumors suggesting that Eden Hazard could be leave Stamford Bridge for Santiago Bernabeu for a world-record fee, could Ronaldo head in the opposite direction?