ROME– The Tom CruiseKatie Holmes long-anticipated wedding celebrations have finally begun!

The couple moved into a 7th floor penthouse at Rome’s posh Hassler Hotel this morning, The ENQUIRER has learned exclusively. The preparations for next weekend’s nuptials at Odescalchi Castle, 25 miles away, are underway.

Earlier the bridegroom-to-be stepped from a private plane at Rome’s Ciampino airport, carrying their baby Suri in his arms.

Cruise, Katie and their other children took a black limousine to the hotel. It swept into the garage area protected by a strong security detail from a company recommended by pal George Clooney, who has an Italian home.

After Cruise and Katie settled into the suite they ordered a light meal of prosciutto and melon with buffalo mozzarella, washed down with mineral water.

As word of their arrival spread, crowds quickly gathered outside the hotel, close to Rome’s fabled Spanish Steps.

The couple’s long-awaited wedding is expected to take place at the romantic 15th century castle on Lake Bracciano on Saturday, November 18.